Nope. We rode on many rides today without masks. However, we did watch them halt a Winnie the Pooh ride vehicle as someone wasn't wearing a mask. Ride starts outdoors, but goes indoors. You just have to put your mask on when you get in the ride vehicle.
They'll usually remind you to put it on and are usually nice about it. I'm trying to get in the habit of thanking them for reminding me and they're forgiving when you forget. I'm sure most of them hate asking way more than anyone hates wearing, it's just what they've been tasked to do.
ETA: I’ve added a post on my trip report that adds more detail to the various types of situation you may encounter at this time at
Disneyland. Feel free to check it out, it’s just a bit long as I tried to include as much detail as possible:
https://www.disboards.com/threads/we’re-off-to-see-the-magic-tr.3847377/post-63238423