Old Republic is still a great game. You can tell the jump in graphics from the original game to the expansions, but it still holds up. It also runs pretty great on Proton, and the launcher was moved to Steam. And it's free.
I recommend people try it and if they like it, just pay the subscription, for at least a month. Even if you cancel after a month, paying for a month gets you access to the expansions. When I'm actively playing it I happily pay the subscription, it's a big quality of life boost.