If you’re dropping that kind of cash, you definitely want to future proof it and not go with the budget lastgen motherboards.
Buy a $300 motherboard now in case you need future features, or buy a $100 motherboard now that does everything you currently need and then buy a second or even third $100 motherboard if you ever actually need those future improvements.
Then you get a new board designed for the new features instead of something several years old and you come out $100 on top.
Futureproofing is nonsense. PCs just don't work that way, and haven't for decades.
Future proofing is an expensive way to pay for features you don't need and will probably never use.
It's smarter to buy a cheap motherboard that meets your needs now. If in the future you find the need for USB4 or some other feature, upgrade the motherboard.
More often than not, builders will try to future proof for eventualities that don't arrive before it's time to upgrade to the next CPU socket anyway. There are a lot of people with expensive, outdated "futureproofed" builds who would have been better off saving the money on the original purchase so they could upgrade sooner instead.