My bad - I thought Tiktok (and other Bytedance apps) were banned in the US but apparently not since President Trump reversed the US Supreme Court decision. Huh, so it is mainly the European powers who are the culprits. Changed my claim.
To support your original claim - when I was in the military, we were explicitly forbidden to look at anything Snowden leaked as it was still classified and would be a violation of our clearances as we did not have either the appropriate level (e.g., TS-SCI) or need to know. Kind of understandable, but still.
It was easily the best way of clearing the office for some peace - mention the front page of the newspaper and everybody would lock their laptops, pick up their papers and walk.
From what I can gather the fact you know something you shouldn't, even though it's in the national news, it causes problems when renewing your clearances, so...