Hi @milty456,
Yes, Stellar (XLM) is supported. I have XLM myself in my Trezor wallet. Please read this thread carefully, especially post #5 from MichalZ.
See also:
https://trezor.io/coins/stellar
And please do your own research. As a new user there’s a lot to learn before you try to use Trezor for transactions. It’s easy to step wrong if you don’t know what you’re doing so it’s important to learn before you do something that involves money.