There was a recent discussion of using a mountain bike with a 1x drivetrain with a 32t chainring with the Hub, and the conclusion was that the high gear is too low. Using a PG-1230 will make the high gear lower since 11t is the smallest cog that can fit on a Hyperglide freehub body. If your bike can support a larger chainring, you could use the PG-1230 with a larger chainring and a longer chain. Exactly how big the chainring needs to be depends on your power, whether you expect to sprint in Zwift, etc.
Better options would be to get a road bike, or a trainer that has an available XD/XDR freehub body such as a Kickr Core.