I’ll say this about the last two seasons: they’ve left me with the urge to rewatch Seasons 1-9 again, if only to work out what my personal canon really is. Don’t know if that’s bad or good, but there you go.
I worry that I would ruin my memory of x-files if I rewatched it. I fear the alien storylines are painfully dated
If by “dated” you mean “initially intriguing, but increasingly meandering, discordant, and pointless”, then yes, the mytharc certainly is dated.
and probably even the monster of the week (which we’re always my favorite) probably haven’t aged well.
Certainly not the ones from Season 7.