Difficulty aside, this game is unrewarding and I don't think I will continue, although it's beautifully made

Yes the game is hard I am not here to complain about that. I wanted to explain my perspective on someone who doesn't play too many 2D platformers but does play very difficult games. The last 3 bosses I beat basically gave me zero reward beyond just letting me pass through different area. This alongside the difficulty is what is making it nearly impossible to see myself finishing this game. It really sucks too because I see the time and passion put into it, beautiful visuals, incredible sound design, etc. I have other problems but I feel like those could just be me personally, mostly the platforming at times is just miserably frustrating and not satisfying whatsoever.

For reference I am on the Savage Beastly Boss right now now and unlike Elden Ring or souls games (which is my best comparison, run backs, difficulty, etc) I don't have the genuine desire to keep going and beat the boss. Mostly because even if I do I don't feel rewarded or even a sense of achievement, just relief like "Jesus christ I'm glad that's over..."