Flash => HTML5 was a travesty for creative little games on the web. It never recovered. Even today the authoring tools are crap for the average person with an idea, if you ignore AI vibe coding for a minute, which overcomes the tooling deficiency by being experts at the difficult tooling. (But I guess Flash => HTML5 was only a part of it, the rise of IAP everything, which was also pioneered/popularized by Apple, may have played an equal or larger role in the demise of that game genre.)