Sounds really petty. At my workplace it’s all hot desking so I sit somewhere different almost every time I’m in the office.A friend was given a stern talking to by her new boss at her new workplace for taking a chair she had no right to.
Nobody told her that the chair you're given is dependent on your place in the pecking order - she didn't actually have a chair to begin with, so grabbed one from what she thought was a spare desk (it was empty, but that's because the person who sits there works between two offices and carries all their stuff - except for their chair - around with them).
What a stupid policy. Just give everyone a chair that's suited to their needs and be done with it!
I don’t mind it, but they go on about how we all need a DSI assessment regularly and may need to get our chairs adjusted, but how likely is that when we’re constantly moving?