Most major chain hotels, even the chinese ones like Atour, accept foreign bank cards (MC/Visa are processed through Unionpay networks).

That said, in smaller towns and cities, they might have to dust off the card machine . I had one case where they tried but after 3 attempts I just said screw it and paid by Weixin and swallowed the processing fee. But maybe because I am used to FX related fees anyway since in Europe, our bank cards are less generous with perks and charge more fees in general.