I can't tell if this is a total joke post like reddit, or a sarcastic attempt at saying "well the employer can accuse you of ANYTHING" because the poster has never heard of employers accusing former employees taking things.

You aren't supposed to take private work materials with you when you leave. I know for a fact that I've seen "screenshots" explicitly listed as one of the things I'm not supposed to take in several very reasonable employee agreements I've received over the years.

Having been presented with very unreasonable employee agreements (once a security company tried to get me to sign "we own all your IP while you work here, and for a year after you leave" agreement), that doesn't mean the company doesn't get to keep the private stuff it owns private.

It's theirs, not yours. You signed an agreement not to take it. Don't take it.