That's a bummer. These stickers seem to be a real curse. And even goo-gone didn't help?
Did you try a hair dryer? On real vintage Kenner fig cards, a gentle hair dryer was the first thing I would try on stcikers (price or offer,) then lighter fluid or goo gone. That seemed to get rid of maybe 3/4 of the stickers (occasionaly you'd get a ghost image of where the sticker was, or a teeny bit of print that lifted from the card) - on the rest the adhesive had hardened a bit, but those stickers were decades old. You'd think these new ones would be easy.
In a YT video review I saw the guy said the figures seem kinda high gloss. Chewy especially looked like he'd been hit with varnish. The other issue was that the detail is noticeably less than the original figures - the lack of detail on Luke's face vs the original 1978 fig was really pretty noticeable.
Oddly enough, I seem to recall Hasbro said that the new figures are slightly different sized vs the originals, yet in the video they didn't seem noticeably different in size,