just posted from the source at the bottom that even if you’re not involved in crime, you could still get hit if the BTC you hold was once linked to scams, hacks, or mixers. Regulators and exchanges are now tracking harder, coins can get flagged or even frozen.
In this regard, you're referring to tainted bitcoin and once you're not involved in any illegal bitcoin acquisition or trade, you are free from these, secondly, if you don't make use of a centralized exchange, which can lead to your account being frozen due to the government policies, you're also free, lastly, don't engaged in any form of illegal acquisition of bitcoin such as hack, scam and the rest, then you're also free.
Those that these regulators often targeted are the users of centralized exchanges, not your keys not your coins, i can see the way some exchange users are changing their addresses recently for same or related reasons, we don't have to learn form the hard way, even if we are innocent about all these, we cant override on government policies in regulating on these crypto platforms.