I've watched more of these! My thoughts are a bit scattershot, but:
Enchanted Grom Fright
I've got nothing original to say about this one, but THAT scene was awesome to watch, and just a great use of the medium, wrapping major character beats and an action setpiece into some lovely animation.
Wing it Like Witches
It's possible my expectations were just a bit too high, which is a credit to the show, but it feels like the self-aware sports story beats of this episode have been really well worn (like really? An extended "the Golden Snitch is a bad game mechanic written by someone who doesn't know about sports" spiel in 2019?). The friend dynamics were good, though, and I like that there were lasting consequences of the big game for a couple episodes after this.
Finale stuff
As has been stated upthread, I really like how this set the stage for a shifting status quo.
Escaping Expulsion
This felt very similar to a certain episode/character arc from Gravity Falls, which is not at all bad! And I think the "standing up to shitty parents" theme hits different for the shows' target audience. It's nice? concerning? to see Luz's willingness to throw herself headlong into mortal peril is still unwavering.
Echoes of the Past
A King episode! With the more crowded Owl House, he'd definitely felt a bit sidelined recently. What struck me about this episode was that, more than most non-gaming media I can think of offhand, it hit an extremely video game-ish vibe in the best possible ways. The setting was extremely appealing, I really enjoyed the creature design and animation, and the music/sound effects during some of the most intense encounters was just perfect for setting the tone. On an unrelated note, seeing that Luz draws that stylized "S" that every kid has doodled when they're bored was a very satisfying throwaway visual.