@techlore Their Proton Wallet launch seems... interesting. I wouldn't use it regardless, I have Stack Wallet that supports multiple coins, including privacy-focused coins like Monero. A cool thing I seem to like about Proton Wallet is that they mention you could send Bitcoin "as easy as sending an email", because literally, if the recipient has a Proton Account, including third-party email addresses, that's all you'd need to send them BTC. That's pretty handy.
Proton's "reason" for the existence of Proton Wallet seems to be that they believe in the "principle od giving you control of your financial freedom", and with this anyone can have a "free, secure and easy-to-use Bitcoin wallet". Not privacy-focused, but I don't think it's completely off-brand for Proton.