The Japanese Anime I have watched as they aired that ended in the Fall 2020 broadcast season (From around the beginning of October 2020 to around the end of December 2020).
Shows are listed as their separate 'seasons' to conform with Japanese series formatting, see any attached notes.
Best overall:
Gal & Dino
Demon Slayer: Mugen Train
Best animation:
Demon Slayer: Mugen Train
D4DJ: First Mix
Best story:
Earwig and the Witch
Best music:
Demon Slayer: Mugen Train
D4DJ: First Mix
Most surprising:
Sleepy Princess in the Demon Castle
Gal & Dino