Hendrik thanx for your answer and time.
markkdark
Try to syncing via Next Cloud. I'm sync from Linux desktop and Android (Grapheneos).
I think so, that is safe.
I'm use it. It's very clean, minimalistic and simple like arch philosophy. With some sweetness apps.
I use LibreWolf and maximum protection just for FB and similar web pages, and Firefox for normal browsing or other safe sites and my problem is solved.
I suggestion a Open board with swipe function. https://github.com/Helium314/openboard Swiping this on Openboard 🦾🦾
No, I just install via browser and Grapheneos web site.
I don't know, I have a pixel8 with Grapheneos and installation was without any problem.
Open Board fork: https://github.com/Helium314/openboard
Allow loading Glide typing library
not included in the app, as there is no compatible open source library
can be extracted from GApps packages (swypelibs), or downloaded
https://github.com/erkserkserks/openboard/tree/master/app/src/main/jniLibs/arm64-v8a
Openboard - Settings - Advanced - Load gesture typing library
linmob thanx for your answer.