I don’t see why it wouldn’t be. I know some Christians can be against it, but aside from the (usually vocal) minority, most can see beyond anything that breaks the rules of their faith and lets them enjoy the benefits.
One of the firmest believers I know (also one of the best people I know) practices Yoga every Sunday before Chruch. The class doesn’t need to even be centered around your faith, but it can help you hold space for your God or whatever else.
There’s also plenty of choices for flows online: