Oh, it definitely is.
I tried to keep her off my stuff in the beginning. But she’s more stubborn than I am, and keeps trying again, for hours and days if necessary. At some point I just gave up.
Now, when she wants to sit down on the keyboard, I quickly lock it and accept that it’s time for a break and some scritches.
Holy shit, mine does that too. It’s how we got her, we went to the shelter to pick one and when we entered the cage with all the cats in it, she jumped on my shoulders.