~snip~
2 years have passed and maybe they're "still" on that development stage. @OP you don't hope anymore for a trust wallet desktop version to come.
Consider the suggestion of everyone in here if you're going to use them as your main storage.
I found this[1] (9 months ago) but the MOD hasn't mentioned anything about the wallet being under development. In addition to that, the android wallet support WalletConnect which should allow you to connect to DAPPS from your desktop computer.
It's very possible that the idea of a desktop wallet has been dropped after they got acquired by Binance.
[1]
https://www.reddit.com/r/trustapp/comments/levs5l/comment/gmjm1w6/?utm_source=share&utm_medium=web2x&context=3