This trick is not new; it has been around for several years. In my opinion, I first heard about it in 2018, but I can't say for sure when.
Everything is based on greed, because in this case you forget about vigilance and rush to snatch the jackpot as soon as possible before others do it. As a result, your 20 turns into a scammer's income.
Its started around 2017-2018 one of the minereum genesis address is one of the earlier where you can see large value of token when you check the address in etherscan . I don't heard any new waller having that again but obviously they can do it in different wallet if they want since they already started that kind of gimmick.