For whatever it’s worth, you can get some very performant ARM and RISC V processors. Software support gaps are less of an issue for ARM considering how long it’s been around for. The apple silicon macs are all arm based and seem to perform very well under specific scenarios and workloads.
But I’ve had some struggles recently with very obscure software packages not playing nicley on my raspberry 5 with x86 emulation, so there are some definite hurdles still.