I'm honestly really sad that there's no simple way to get Flash games working anymore. Flash games were a huge part of my childhood and now all of them are basically unplayable without spinning up a VM.
Check out both Ruffle[0] and Flashpoint[1]. Ruffle is an open source flash player emulator that compiles to WASM and has a browser plugin you can add that will allow you to run embedded flash content on a web page (although its not needed if the server serves up a copy of Ruffle). Flashpoint is a collection of thousands of flash games with an easy interface to play them through flash player.