if biometrics is the only thing you have you might aswell not have a password at all but if you use it with a 2fa pin it is good for example for your phone yiu can have a long backup passphrase and if you dont want to type that in you can use biometrics to unlock the pin screeb and still need to type in a pin so its the best of both worlds
is it single use links?
u could prob find a way to do this with nextcloud i saw smth like this on fdroid for nextclouf
id say use the soical media in a browser and if u dont need a account use it over tor and all the people on telegram,messanger and whatsapp tell them about the privacy concerns with these apps and try and get them to move to simplexchat or matrix (especially if you self host) so theres no real drawback because they dont require any info of yours to work
another option if you want a hybrid is host a jellyfin instance with your music youbcan even install a lrclib plugin and get pretty good lyrics
lineage os has a pretty extensive device support or in theroy you could compile base android with none of the spookieness or bloat.
i host my own but if you cant do that id reccoment one of the ones with the V html grade and with good uptime
gentoo would be here but its busy compiling a browser to view lemmy gimp to add its self in and its updates for the last year
Linux is like mechanical keyboards once you use it once theres no going back
keepassxc and keepassdx with keepass2android for redundancy
i used to use startpage before switching to searxng and its pretty good just the mobile app they beckon you to download is garbage and just chromium with a startpage paint job over it but if you just want the search engine for another browser its prob one the best
i use gentoo because i love the package manager and how in control i am of my desktop and for servers even though not linux ive been using open bsd because of secure it is and lightweight helps squeeze out little bit more performance from mt shit vps lol
synapse can be resource intensive but u can conduwuit or now tuwunel and its pretty lightweight https://github.com/girlbossceo/conduwuit https://github.com/matrix-construct/tuwunel
NeoVim with NVchad stomps both
for vpn super generic but Mullvad or if you can you can self host a vpn youtube music has some apps over on Fdroid like musify
the icons are not for every app but i dont know if you can chsnge for default apps. the camera is pretty good has good zoom diff modes etc. battery is pretty good lasts the whole day. the sandboxed services are great most apps work you will have “GmsCompat” running when play services is. and some apps still wont work with the sandboxed play services like Gwallet and the multiple users are a very great tool if you need to run non-free software.
im pretty sure they turned over ip of a french activist (not 100% sure) and when i was checking them out there tor mirror just linked to the clearnet site wich put me off so based on your threat model they can be ok
i mean cant go wrong with a self hosted matrix instance im pretty sure theres some managed hosts that make the process eaiser i dont know if this is what your looking for but cant go wrong with it
side note but you dont need to use proprietary android phones you can flash custom roms to most like GrapheneOS LiniageOS or CalyxOS or you can find a linux phone os like ubuntu touch