Great implementation, as a fan of klondike and balatro this hits a spot in my heart.
Suggestions: I would love if you could add a setting to only draw 1 card at a time, I tend to play that mode more, I know, it's super easy mode but I enjoy passing time like that.
Fixes: Also I don't know if it is deliberate but when you move a stack the card you are holding jumps forward, and after winning the black square where the deck was is also in the foreground when all the cards are flying in their "victory lap". as is visible in your screenshots.
BTW: Download link is for Dogwater Chess.