Might as well share some brief, not-so-unpopular opinions/critiques I have for the show:
The earlier seasons aren’t as great as some would make them out to be.
The fandom takes shipping way too seriously at times.
I would’ve preferred if Scootaloo stayed an orphan throughout the show.
Grogar being Discord was dumb. The whole finale felt rushed in general.
I thought The Last Problem was alright overall, but I don’t like how AppleDash was heavily implied by the writers.
Most of the background ponies aren’t really given enough screentime to warrant being appreciated as fondly as the main cast. Slice of Life doesn’t help much either, as it just felt like a clusterfuck to watch through. It also felt like the writers were just pandering to the fandom, which I know is sort of the point of that episode, but I still don’t really like it.
I feel the show has quite a bit of missed potential. It felt like it was too afraid to take any risks and preferred to play things safe, which results in something that is cute, but not necessarily deep.