i use
#Debian #Linux
#email #gpg #Thunderbird
#Firefox
#LibreOffice
closed source only in VMs

#mastodon
#cryptpad
#irc #xmpp #otr #pidgin
#threema
#nextcloud
#mediawiki

in the past
#netnews

in they future (maybe?)
#sourcehut ? #codeberg ?
#matrix

i boycotted
#facebook
#twitter
#reddit
#discord
#whatsapp

regrets:
#xing
#stackoverflow

regrets no more (closed):
#linkedin

semi regrets:
#gitlab

"forced to use" (because €)
#github
#teams
#zoom
#jira
#confluence
#slack