I reccomend you try https://librewolf.net/ as your browser
Install these extensions: https://addons.mozilla.org/en-US/firefox/addon/ublock-origin
https://addons.mozilla.org/en-US/firefox/addon/libredirect/
I've found I like logseq over obsidian.
And do consider installing graphine or e/os so you're not subject to google services on your phone.