@john_b1  Technically, it's just any Desktop earlier than 2022 (Soon to be earlier than 2023) that they won't support; QBO isn't necessarily required until at least May 31st, 2027, depending on what they do with Enterprise.

I wouldn't recommend upgrading to 2022 or later unless you have to, though; 2021 was the last standalone Desktop year, anything past that requires a yearly subscription.

May be in your best interest to reach out to a local IT group.