I’m curious, if you consider them average, what game has good or great side quests ?
Probably average wasn't the right word, as I don't really think sidequests are generally good storywise in games. I wanted to say "mediocre" but thought that sounded negative. I meant that I didn't find anything special in them, neither bad nor good.
But for examples of games with sidequests I think are good (storywise), I can think of only The Witcher 1 and 2 and Yakuza 0 (all of which I haven't played in a while so I might only remember the good parts).
I've finished Metaphor and it was really good, although I expected a bit more from the story, the ending felt a bit rushed.
I've started Triangle Strategy and while I'm enjoying it, the xp/difficulty curve feels really weird, as the battles feel too hard as soon as I reach them, but failing them once I level up enough to reach the recommended level and pass them.