Of course, this is a very big welcome development for MetaMask fans and users out there. Though am also using Metamask, this is not my first choice when it comes to crypto-base wallet as I am depending a lot with TrustWallet though one time I was a victim of an unauthorized withdrawal of a certain tokens in there and for which until now I still don't understand how the attacker did it to my wallet. Now, with Metamask and its addition of support for Bitcoin via a sandbox am sure this can expand the market coverage of the wallet soon and in my own opinion this should have been done a long time ago.
I tend to agree with those who do not trust metamask with their funds and now they are integrating bitcoin to use with their wallet, it will look like they are going the blockchain.com route with being a multi faucet type web-based wallet.There was a crypto youtube influencer that I had stumbled upon recently that had their wallet drained due to him accidently leaking their pass-phrase while doing a transaction for obtaining nfts via this wallet.
Metamask Got Hacked!! ALL NFTs Stolen PLS DON'T get HACKED! USE COLD WALLET 😱😱 | TIPS & PREVENTIONS
https://www.youtube.com/watch?v=26JKiV2HWUk
If one isn't completely focusing on what they are doing when transacting via a web wallet, they can be handing the keys over to phishing sites/scammers quite easily.