PlayOnMac is like wineskin, winebottler or crossover a piece of sofware which allows you to easily install and use numerous games and softwares designed to run with Microsoft's Windows. Interesting points to know:
You don't have to own a Windows license to use PlayOnMac.
PlayOnMac is based on Wine, and so profits from all its possibilities yet it keeps the user away from its complexity while exploiting some of its advanced functions.
NOT ARM64 (Apple Silicon/M1) native. An ARM64 native version of WINE exists, but it is very preliminary. As such, what you get is an emulator for Windows apps running inside an emulator, Rosetta 2, meaning it's slow. It's unlikely a finished public version of ARM64 WINE will be released until Apple kills Rosetta 2. Therefore, look elsewhere if you can. I'm successfully using Parallels with ARM Windows 11 Preview. It's x86 emulator is quite reasonable.