As many members had suggested the only way to store BTC on metamask is by wrapping them (WBTC).
That is not storing Bitcoin, that is giving out your Bitcoin and getting a fake version of it in return which you can then store on metamask. No one should be handing out their bitcoins when there are many open source and safe alternatives to store Bitcoin, real Bitcoins.
What OP should take from the thread is that trust wallet is not recommended and should be avoided.
Exchanging with fake versions is the same as holding Altcoins, better for the right way out besides using Metamask and Trust Wallet is to use Elecrum as the main storage of real Bitcoin and there will be no exchange of fake Bitcoin oak or other Bitcoin chains. Bitcoin remains Bitcoin, it cannot be changed. Installing Electrum is very easy and is also available as a mobile app.