That is a subjective perception that has more to do with psychology than with actual events. In poker it happens a lot, and I've had that feeling myself: you're in a bad streak, you change site, or modality, and it seems like it's over.
Here the issue is that when you have been losing for a while in the same game you have a counter that keeps counting and if you win a bet and lose two, you still think you are in a bad streak, while if you change the game the counter goes to 0. Things like that.
If you change the game your losses might still continue, it's just a matter of the timing and luck. It's also very possible that you can have winning streaks from the same game you are used to, there's nothing special about changing games, the only thing I can agree to is if you are switching to a different type of game entirely and by that I mean from casino games to sports betting, I did the same thing few months back and I had good results with sport games.