MacOS Ventura (13.7) user here on a 2017 MacBook Pro, with the same issue. I just picked up my new USB-C Magic Mouse today, excited not to have to use multiple charging cables for different peripherals anymore. Then I discovered that the mouse won't scroll, making it essentially a paperweight. I can't upgrade to 15.1 on my laptop.
These kinds of issues are why I quit PCs and Windoze and switched to Mac years ago. Hoping Apple comes up with a fix soon, and goes back to ensuring backwards-compatibility for their products. Forcing upgrades on people to get their hardware to function is the kind of evil nonsense that Microsoft is known for; I expect more from Apple (or at least I used to.)