Is that why they're so expensive? Are entry-level boards with overkill VRMs going to be the norm?
AMD learned from it's AM3(+) era and is demanding a minimum spec VRM into all boards. So if thats a 50$ up to 600$, it has to comply with AMD standards or you kind of cant make a board for AMD. There's testing on Techpowerup where they installed a 5950X on a 50$ board. And it did even OC. Yes it ran extremely hot but it was stable and capable.
It never got to some people that AM4 boards have drasticly improved, and AM5 as well. But motherboard makers are looking for a way to extract a higher selling price and installing really overbuild VRM's to the point you can almost start welding your tools inside your own garage with it.
No way your ever going to tap into the maximum potential; not even with a LN2 OC. A larger VRM might easen things a bit better or get a more stable voltage, but even in server space you'll see enterprise boards with TDP's of up to 400W with just "4 vrm phases". I hope the next time some attention is dropped to the overbuild VRM's these days.
Like if your going to buy such a big board, you as a experienced OC'er know what todo with it. I would for example appreciate a VRM switching frequency that you set up to 600 times a second; which will yield you a lower overall core voltage, if you know how to tune it.