I mostly use Startpage and Waterfox as browser. I know system1 was bought by an advertising company which on itself is a bit spooky, but they haven’t done anything that would be a concern for my data.
Startpage uses google as a serach engine but anonymizes your search query and u don’t see these paid google ads in your searches. pretty neat.
Waterfox is modified Firefox but without the Mozilla shit. I wanted a good balance between usability and privacy and other Firefox based browsers like LibreWolf were just such a drag for everyday use. I can still sync my Mozilla account for bookmarks and stuff which is neat but for other than sync functions and updates Wterfox doesn’t phone home
BSPWM and Polybar because I am too lazy to figure out eww and I use KDE as a backup in case anything breaks lol