What the manufacturer lists for maximum sprocket size or wrap capacity has to include an extra 2-3T of wrap to handle the in between chain stay lengths that don't correlate to an even number of chain inches. That's where the rigorous formula at the park tool website can be helpful, but only if you have the geometry chart for your frame to get the most accurate chain stay length, measured from the center of the BB to the rear axle, along the centerline of the bike. That's hard to measure at home. I just make sure that the chain is long enough with the big/big method, then check for chain slack in the little/little.
SRAM claims that my standard Force AXS RD won't work with their new 10-36 cassette, but it does, with the aid of a slightly longer B screw. I have a crank with a 16T difference instead of SRAM's 13T and it still only comes up about 1T short on the wrap, at the small end. If I used a 48/32 crank instead of a 46/30 it would still work, with no slack at the little end.