10 week old, jumping

Hi again! I have been trying to find a way to Google my question to no avail.

Our puppy is 10 weeks old and has recently discovered she can jump. After a bout of zoomies, she discovered she can jump up the first two stairs in our home and we have a meditation pillow that is the same height as one stair that she repeatedly jumps on and off of.

I know she’s not supposed to do stairs because of growth plates and joint protection, but how high is too high for her to jump?

Every time I googled this, it was coming up with tips on how to get her not to jump on people, but that’s not the issue (at the moment). If it’s safe for her, we dont mind her jumping on the pillow, but I’m looking for advice on how high is too high.

TYIA !