I’m also in no way qualified to check code, so I just trust that if something has a lot of forks it means a lot of people are looking at it.

Thanks. I tested a few and so far I favor PicView (haven’t tested ImageGlass yet). A lot of people recommend nomacs, I find it kind of weird because it technically doesn’t even support Win11 since its last update was 2020, before Win11’s release (Win11 isn’t even listed on its site). I wonder if there haven’t been any codec updates since then for nomacs to still rank so high.