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It looks like you can only send NFT’s via MetaMask mobile, but not via extension. At least not currently unfortunately:
https://metamask.zendesk.com/hc/en-us/articles/360058961911-How-do-I-send-receive-or-cash-out-an-NFT-
And also you cannot connect Trezor to iPhone.
However it maybe possible to connect Trezor to Android but I not sure how well Trezor will interface with MM on Android.
I think MM is working on update for browser extensions and then it will be problem solved.