I'm writing this very short review based on memory in order to offset the "ZOMG I SEE COMPETENT FEEEEMAILS ON SCREEN AND MY BRAIN IS MELTING!" drivel that passes for reviews on this website.
Seasons 1 to 3 are good. It wasn't on the level of Arcane season 1 but it was good enough to earn my high rating and "favorite" star.
I cannot fully remember why but season 4 was so much trash it made me lose all interest in it. So much so that I didn't even notice season 5 released until literally the time of writing this.
I'll watch season 5 at some point and update this review. For now the high rating will remain, but The Dragon Prince reminds me of RWBY - it started off strong then dropped the ball so bad that I can't be bothered to keep up with it anymore. I see also that a season 6 is planned. I am neither excited nor dismayed. This series exists and so do I.