nah, used to be that was closed beta. Palia is currently in “open beta” but its actually just PC exclusive launch because there are no further wipes.
Used to be the terminology was strict and easily understood. Now its just whatever the dev wants to claim it is.
Open Beta used to be “game is free for a week then we will wipe, do any backend fixes we identified, and then launch”. Last MMO that did that that I can concretely remember was SWTOR.