hardware wallet – What is the difference between PSBT support in Coldcard and Trezor?

The 10x Security Bitcoin Guide says that the only two hardware wallets support BIP174 (partially signed Bitcoin transactions, or PSBT). However, this Reddit thread says that “You can use PSBT with Trezor via HWI”. This Github issue elaborates.

What is the difference between the level of support of PSBT between Coldcard / Cobo and Trezor? Should a user care?