In descending order of good privacy:

• Tor (not necessary for the majority of use-cases)
• Hardened Firefox (you can find tutorials for this with a quick Google)
• Mullvad
• Librewolf
• Brave (yes there’s controversy about crypto and the founder being a dick, it’s still miles better than Chrome)
• Everything else
• Chrome itself (seriously, don’t use Chrome)

My number 1 recommended plugin for privacy and getting rid of ads is always ✨ uBlock Origin ✨ (not uBlock, that’s not the one by the OG dev).

Didn’t know about Barclays! Thank you for educating me.

I’m afraid not. You can have Google Wallet installed but you can’t have bank cards on it on GrapheneOS.

Edit: this link for more context

I loved it too until I forgot my wallet one day. It’s the one thing I had to go back to stock Android for because I forget everything but my phone constantly.