Raspberry Pi 4B Running Kernel-7.2
These latest kernels are economical, efficient and extremely stable. However, don't take my words for it, go ahead and build them for yourself on whatever machine architecture that one preferes. I just use the Raspberry Pi as my test base because there was a time when vanilla Linux kernels didn't run on them out of the box. At least that was my experience a decade or so ago. Now, relatively speaking, it's a breeze.
https://blog.natehiggers.org/raspberry-pi-running-kernel-7-2