Echoing everyone else, I preferred the FulGaz videos. But their Windows app was far, far buggier than all other apps I trialed so I ended up on Rouvy after getting bored with Zwift back in 2020. My partner didn't care for Zwift's fake roads either. We could ride together on Rouvy's AR routes and they had a family plan before FulGaz did, making it an easy choice.

I don't do tri so the addition/return of the IM routes doesn't mean a thing to me. Other than the nicer videos, I don't know if there's any other potential benefit as a Rouvy user. I hope Rouvy didn't put themselves in a hole paying for FulGaz in the hopes that it'll lead to future growth.