Go to the Settings -> System -> Multiple Users. Allow multiple users.
Without much context all I can suggest is PowerAmp for music player. It is a paid app.
Eternity for Lemmy.
Heliboard for a more private keyboard.
Newpipe for YouTube.
Check out LocalSend. App that let you send things over local WiFi. No server required.
Desktops. Don't have to worry about batteries and easier to swap out parts.
Mostly their marketing practices. They are designed well but mostly designed to keep you locked in one way or another.
For me, their desktop is not as intuitive as people make it seem and lacks simple shortcuts that most other desktops have.
On mobile, its the restriction of customization and options. They are getting better at customizing but still limit you on options for anything outside of their apps. They claim to be private but follow similar practices as other companies, just in a more quite way with better PR.
AI doesn't automatically equal not private. Its probably still has private as it was before.
Now if it starts showing it knows things about you, then I'll be concerned.
Its due to compression of the video in order to fit on a MMS message, which is very small. Android uses RCS as a new message standard that can send bigger files but Apple has yet to add it to their OS. Its similar to how Apple uses iMessage to do the same, however this is not a standard and is locked to only apple devices.
Apple is supposedly adding support for RCS during the new iOS update but until then you can use a different messaging app to send better/larger files.
I recommend Signal as it is easy to sign up and start using while also being private.