Sonalder

You can buy the SMS verification for Telegram on sites likes smspool.net using crypt I currencies such as Bitcoin or Monero.

If you don’t install software made from people that are not align with your ethics there are probably more than just brave.

The real downside of brave is the cryptocrap. It is still optional. However the fact that it support the chromium monopoly is also a bad point.

I think you confuse security and privacy. Samsung are pretty secure from what I saw. They are not private at all however. You can debloat it with adb and maybe tools such as Universal Android Debloater.

There is a couple of guide such as this one: https://linustechtips.com/topic/1402380-ultimate-samsung-oneui-debloat-privacy-customization-guide/

I don’t have that comparison but here are some resources that critics FlatPak’s misleading security

https://hanako.codeberg.page/

https://flatkill.org/

https://whynothugo.nl/journal/2021/11/26/the-issue-with-flatpaks-permissions-model/

FlatPak is not the as secure as everyone think it is.