You can absolutely paint upholstery and Hometalk has many articles about this topic.
I like this tutorial for painting upholstery: https://www.11magnolialane.com/tutorial-how-to-paint-upholstery-fabric-and-completely-transform-a-chair/
I would caution anyone that working the diluted paint into the fibers is key.
Hello. Here are some links for your consideration. Hope this helps
How to paint your microfiber couch to look like real leather! | Lily Ardor - Fabric Paint