It is. I never hear the fan running. But annoyingly, they've put the fan vent on the right side of the machine, so every now and then I can feel the hot air from the vent when my mouse is close to it, but I never hear it. Even in the quietest environments.
I have the Ryzen 5 PRO 3500U (4c8t) with integrated Vega 8. I haven't done any under/overclocking or anything special, it's a pretty vanilla machine. I've only swapped out the NVMe drive it came with for a Samsung one.