You can impose CPU restrictions in Windows 10 or 11 too...

You can limit CPU usage for a program in Windows by adjusting the "Maximum processor state" in the power options to a lower percentage, such as 80%. Additionally, you can set the program's CPU affinity in Task Manager. Please note this will only affect the process scheduling.

You can also use a free tool like Process Lasso or BES to limit the CPU for a Windows application. You can use a free tools like HWInfo, SysInternals (ProcMon, SysMom, ProcDump) to monitor and check for CPU usage, especially to investigate CPU spikes caused by rogue (malware or poor performance) apps.