While true, it also includes any US (or other county) company that is owned at least 20% by someone in one of those adversary countries.
The President can't just name any country an "adversary country," but it's not just companies in those countries either. So something like Epic Games could qualify since TenCent (owned by a Chinese national) owns >20% stake.
However, the law also restricts how a company or product is subject to the rule. Basically, unless they are TikTok or ByteDance (or directly affiliated with either in a legal sense), the President must:
Publicly notify Congress of the intent to classify them as an adversary company (assuming they meet the rest of the rules) at least 30 days prior to any further action
Notify the public of the change
Then the company has 90 days to appeal before the statute of limitations is up, and 270 days to comply (i.e. divest from the adversary country).
So the bill is pretty decent in preventing abuse, so I'm more worried about the precedent it's setting. We generally don't ban things here in the US, so this is a pretty big step IMO.