It’s not even that though. The developers could have been amazing for all we know but great devs doesn’t help a paid game in a genre that already has too many games in it, most of which are free. This is especially so when the publisher does absolutely zero advertising for it past the initial announcement trailer.
There were plenty of good shows in 2023 though? Even excluding Frieren and shonens (since I’m assuming based on what you said, you aren’t interested in them) there was also Apothecary Diaries which aired during the same season. Oshi No Ko was pretty good also (the first episode is by far the best, imo the rest of the show is still pretty good tho). Those definitely stood out the most to me but I did enjoy a lot of the 2023 shows I watched.