GP5000 tubed tires = easy to mount on any rim, maybe just a single tire lever needed. Same as any other tire.
GP5000 TL = awful and need a bead jack and/or multiple levers to get on any rim. Lots of swearing.
GP5000S TR = easy to mount on any rim, maybe just a single tire lever needed. Same as any other tire.
FWIW - I don't see the GP5000 TL listed on Continental's website anymore and wonder if they've stopped making it? I would never buy those tires again, especially now that the S TR is out and is much better.