Lovegasoline

Proviso: I've not bikepacked. However ...

I've had an MSR Whisperlight International since the 1980s. About 15 years ago I sent it in for service (I think it was to get a shaker jet?) and MSR refused to return it to me because it had the old style rubber covered in cloth fuel line, they said it was too old and too dangerous to continue using (wtf?) and asked if I'd like a new stove for free, and sent me a modern replacement.
I've not yet bike toured at all but have done a good amount of backpacking with it and have spent literally years living outside in climbing base camps and augured in for long term dig-ins for months at a time using this stove. If I'm long term camping and have access to cheap white gas (like Walmart) I'll buy a gallon and use that. Otherwise I just fill up an empty scavenged or other gas can and/or MSR fuel bottle at any gas station pump. This is in the USA. I've never once had a problem in three decades. Gas from the pump burns dirtier than the more refined White Gas so the stove gets dirtier. No matter, it's a tool.

Never had a problem flying in the USA with MSR Whisperlight International and MSR fuel bottle (empty of course!) in dozens of flights. (I've interesting stories of flying internationally pre-9/11 with hazardous and flammable art supplies ... stories for another time). In fact, I flew out of JFK in NYC very shortly after 9/11 just a couple-few days after they had reopened the airports. It was a new era but nothing was established. Very few people were flying, NYC airports looked like vacant quiet ghost towns, heavy armed military presence, large bomb sensing devices that looked like shipping containers camping out in the lobby, and because so few people were flying I got VIP service - I was personally escorted from the entrance through the airport to check in and to security by a kind attendant not unlike a movie theater usher ... who offered to carry my heavy bag (nothing before or since was like post 9/11 service!). They confiscated my nail clippers, teeny micro Swiss Army knife w/like 1" blade, and lighter from my toiletry kit. My MSR stove and fuel canister made it safely to California in my checked luggage.

It's a good policy to wash out the MSR fuel bottle with soap so there's no odor and if necessary stick the pump somewhere else.

That said, I've been putting together an ultralight backpacking set-up and will incorporate parts of that kit for my first forays into (fully loaded) bike touring. I've got a lot of state of the art lightweight gear but I think may likely take the MSR (vs. a titanium canister stove I have or an alcohol stove). Using gas stations to refuel via bike will be dirt cheap and convenient.

The MSR Whisperlight is a beast, is reliable, is repairable, and rebuildable in the field. I'll try to mount my fuel bottle on my bike's (Trek 520) downtube (although I've never had a single leakage issue with it inside my backpack). I won't have to hunt around for fuel canisters or burn excessive money on them. This stove's weakness is at simmering, but there's ways around that and it's in no way a deal breaker. In long term dig-ins at my destination I typically buy a cheap teflon frying pan at a discount store for under $10 so I'm not restricted to thin and lightweight backpacking type cookware which is mostly an exercise in frustration to actually cook with (then clean up) anything except stuff which is based loosely on boiling water like oatmeal, pasta, etc. (try frying eggs for ex.). The best dig-in eating I did was a couple months in the desert about 20 miles from water with a guy who was an astoundingly good chief and packing woks (along with propane tank and a high temp lobster burner ... 4WD Toyota pickup). This was eye opening and gave me insight into adopting something similar (sans lobster burner and 4WD). Generally there's no need to wash or scrub a well seasoned wok, it's fast, holds a lot of ingredients and allows you to move them around without everything getting jammed up or spilling out, and different parts of the wok have different heat zones which gives more flexibility in timing and even doing two things requiring different temps at one time. You can just wipe it out with a paper towel (excels in remote desert where water supply can be an issue). Maybe I'll look into a small diameter lightweight well seasoned wok for the bike, but if not that then definitely a cheap fry pan.

Eating is one of the central pleasures of living outdoors and I do like to enjoy the hang mode. I know what it is to exist on Cliffbars, cold cans of Stagg chili, tuna fish, bagels etc. vs. making delicious meals from fresh meat, fresh fish, fresh veggies, and full breakfasts especially if one is traveling for weeks or months at a stretch. Eating nutritious meals in style with fresh ingredients and minimal hassles can be made cheaply with cheap fuel and modest equipment weights. OTOH, if you're going out for a shorter bikepacking trip there's benefits to running a super lightweight minimalist kitchen/stove/fuel setup with dehydrated or similar prepackaged meals that only require boiled water.