My opponent left/withdrew, but the game continues to load for hours. I can't leave the screen without forfeiting my match and coins. This needs to be fixed before it ruins the game. No fun.
Apparently, they won't fix it - has been around for 10+ years and ruined many a game.
You better adapt your habits to have fun here!
When this happens sometimes try logging in from a different source say your phone if you are playing on PC or the other way around. It may say the game is no longer available but you don't lose coins. Also some clever ( blank ) have found a way of just voiding the game without forfeiting or closing the PC/phone. Don't take much notice of who I play but next time they will get an earful.