Those drives would be overkill, in my very humble opinion for boot. The boot pool is basically just used for booting the system. So you don't need anything special. Especially for a homelab environment. Build in some resiliency, such as having the boot being a mirror. Then use basically whatever reasonably cheap thing you have laying around. You almost immediately run into diminishing returns. I'm myself rockin 2x16GB gen1 Optanes I've had laying around for years. And they work magically. They're pretty much useless for anything else. But they're magnificently well suited for booting the server up.
Don't waste money having enterprise or expensive gear on the boot pool. Put that money towards better stuff, such as better PSU. More storage disks. A good UPS etc etc.
Do note that I'm referring to having the boot-pool being separate from your main storage pool(s).