I don’t think there is anything that can make Intel Macs not obsolete. Embrace it - that’s their charm and you should use them as they were intended to be used, and experience them as they were designed, as artifacts of their time.
I installed CachyOS on my MacBook 16,1, and it feels much faster than with macOS, but the D side is still hot though.
No thank you. They can sit in a museum 30 years from now. Today, they are still amazing and productive machines (once you get macOS off them).