Plays the same on either one.
Only caveat is the no dongle version that was modified and is of course larger, also has an OS which has been modded to go with it. And if you leave the machine running for about 12 hours it will "unlicense" itself. The mod invokes a "network license". If it can't reach said network license server, so it allows it to run normally without a license by design for 12 hours as it believes that it will eventually contact a license server. There is no license server to reach, so that temporary license expires.
But anytime the machine is rebooted it's then licensed again for 12 hours.
Few home users leave their machines running 24/7 and just power the machine on when they want to play so this is rarely seen or a problem.
But if you do leave it running all the time, you would see this behavior and it would probably be annoying.
Most no dongle games don't do this. But there's a set of games like KISS, Bier Haus, and some others where the game CF is larger (many are actually 4GB for the no dongle version compared to 1GB for the dongle version) that will all behave this way, and all of these games must use the same modded OS CF to run as they were all modded by the same person.