The most significant change in CPU architecture in almost 4 decades of computing for me comes in the form of the Qualcomm (remember Eudora Pro?) made SoC, Snapdragon X Elite.
I had always wondered about RISC, having read about DEC Alpha, MIPS, Sun Sparc and Intel iA64. None of those, if at all attainable, ran consumer operating systems. My first non-x86 experience was with the Apple M1 Pro-based MacBook Pro in 2021, which by 2024 had software support to virtualize Windows on arm OS. I was amazed at the smooth x86 Windows OS apps compatibility and decided to go bare metal with the Samsung Book4 Edge.
I am quite certain after 6 weeks that this is a great choice for right now since it has WiFi7 and early access to Windows 11 features, else the Samsung Book4 Ultra would have served me better for native software availability.