Please advise what I can play for free in the browser, what do you play in your free time?

One of the best options to play directly in your browser is https://vuqq.com/spider-solitaire/ Spider Solitaire. You do not need to download anything or create an account. Just launch the game and enjoy. It is a classic card puzzle that helps train logic, attention, and patience. The interface is simple, and you can choose difficulty levels depending on your mood. Great for both short breaks and longer play.