Yes for the browser i agree, sadly apps have trackers and ads too. A dns can be useful if it’s system wide for all that stuff. Nextdns, adguard, rethinkdns or decloudus comes to mind
Sadly a lot of proton promises are super delayed or never happen. Android still relies on Google services for push… even it was promised 3 years back to release a version that won’t relay on Google.
Jitsi, perhaps matrix (element), signal (has tell number) works too. Threema also added video into it… and an unpopular one brave (has it without signing in, within the browser)
If you want it the safest use the official Monero wallet. Or what I use and trust cakewallet. It can also do bitcoin in case you use that too…