I take the same approach as @RonP , I use MoFi inner sleeves and then have 140 Micron UV protective outer sleeves by Vinyl Guru which I’ve found to be excellent, but they’re sans flap, just open ends.
I have a couple of the MOV soundtrack releases which are under their “At The Movies” series which are more premium copies, they come in a heavyweight outer sleeve with adhesive flap and I find it a pain to get them out as the cover gets stuck on the adhesive. I chose to swap out their cover with my own due to this as it kept messing up the cover with residue and was just frustrating.