You might be interested in Nyxt
Yuru camp
You can save tabs to a collection and it has the option to open all it’s tabs
My current wallpaper, found on pixiv
Aard 2 (Offline dictionary) https://f-droid.org/packages/itkach.aard2/
It is not fully private. You can browse without an account but cant use the site’s search. If you don’t want to create an account you can use a search engine like duckduckgo like adding
site:rutracker.org
to your query
You can find games like this one in rutracker which require no installation, decompression or dwarfs thing, only the files. Just like what you’d have after installing a repack
sxhkd can do that but I have not tried it under gnome
OCR (OCR based on Tesseract 5) https://f-droid.org/packages/io.github.subhamtyagi.ocr/