If you need a quick brain break without the annoying sign-up screens,...

https://magic-wiki.win/index.php/The_Solitaire_Empire:_Why_We_Still_Can%E2%80%99t_Quit_the_Digital_Deck

If you need a quick brain break without the annoying sign-up screens, Solitaire.org is my go-to. It loads instantly and offers a massive library of over 500 variants. I love that I can track my stats across sessions without creating an account