Earlier quoted context omitted.
Just bought a brand new car this week from a dealership (US) and the seller refused to accept a check.
They’ll generally accept a cashier’s check. Ours would also accept a personal one as long as you didn’t mind them delaying mailing the title for a few weeks.
Back in the 90s, I tried to pay for a computer with a certified check and CompUSA treated it as a likely counterfeit.