so many apps on linux its easy for some good ones to get lost in the mix. share some apps that are not as well known that you like.
ill start off with a few
Brave browser - based on chromium from the creator of firefox. been using this as my backup browser and i like how it works. could see switching over to it after it gets a little more stable.
nomacs - image browser. came across this last year and has some good options. so many image viewers out there but this one works the best for me. i use it over the default gnome image viewer
corebird - gtk twitter client. very fast and lightweight. i like it better then the website because both twitter and tweetdeck work kinda slow in the browser.