AMD s/b releasing there 3d v cache cpu's next month that will be am4 socket. I've got a 5800x with b550 mobo, but most b550 or x570 boards only support 2 name's and gpu slot is pcie4 so not quite as future proof as the z690 boards...and although you can get a x570 tomahawk for £180 ish(last I checked), youd need a 5800x to compete with the 12600k So you end up paying more on the CPU side, with a mobo platform changing to am5 later this year so no future upgrade path for current AMD CPU's. Intel at least you'll have next year too, and a gpu in next few years with pcie5 gpu slot
If you plan on keeping build for 5 years with no interim upgrade, then maybe see what AMD CPU's are like and how they're priced, and then decide(if you're happy with 2 nvme slots etc)
Also double check your correct cooling will fit on a z690 board if you go that route