I play F1 2021, Forza 7, Grid Legends, Dirt2/5 etc, they feel great. It's pretty well known that the horizon series are horrible with a Logitech wheel. I hear thrustmaster is better with it, but it's a worse wheel in that price classPlenty of folks out there enjoying it with a wheel. Why yours doesn't work well I have no idea but it had issues in FH4 as well if memory serves.
Just play something else. You said you like Grid Legends, play that, or maybe Project Cars 3 or F1 2021(in GP now).....or branch out to a more hardcore sim like Project Cars 2 or Assetto Corsa Comptizione.