Flameshot is the best! I've been using it for 10+ years. I have it wired up to some hot keys in my window manager, and have it dump to s3 so I can paste around links to screenshots everywhere for work.
I wanted something like this too but I modified Flameshot so I don't need a bash script in-between.
Flameshot already has a feature to upload to Imgur so I modified that and also added some small things (like randomized file names, some new config options).
Didn't they remove it though? Because someone complained about "privacy" or something? Devs promised to bring it back as the plugin, but I wasn't following progress on it, I don't know if that happened yet.
This has got to be the "todo list app" for people who aren't app devs; mine [0] is for MacOS + launchd + hammerspoon and I use Shottr for annotation
XDG_CURRENT_DESKTOP=sway QT_QPA_PLATFORM=xcb flameshot
Fell in absolute love with the controls though. Way more powerful than windows screenshots.