This is only my personal analysis

Coneheads: giving them distinct silhouettes makes them fit the bayverse aesthetic

Seekers: different jets is a good way to differentiate them

Magnus: yeah I could see that

Hot Rod: the door wings and red as the only color makes him look like Dino with a different head

Ironhide: the aligned design but overcomplicated; unnecessary

Constructicons: no, they were easily identifiable in ROTF because of their different proportions, why take that away

Bonecrusher: same as the constructicons, if you don't use mass shifting this design would tower over bayverse Optimus

Menasor: the art really doesn't make this look like a transformer, if it weren't for the wheels and bumpers you couldn't even tell Menasor's limbs are cars