Irfanview!
It’s FAST, it’s SMALL, it’s PURE POWERRR
I never understood why there isn’t anything even remotely close to it in Linux. Kde has Gwenview which is awful slow, bloated yet barely has any features at all.
There is a way to run it through wine but that is awful. Cane e start a GoFundMe for the dev to make a Linux KDE release with Deb and rpm files? I’ll happily contribute.
I use csf which isn’t GUI, text only, but the configuration is so straightforward and simple that it’s been my default for years now on server and desktop