BNB is a good as altcoin one can invest in. If you feel like buying, it's also a good decision. I hope you gotten some Bitcoin because investing in Bitcoin is a very good idea than any altcoin. If BNB is your great choice, you can start buying now using DCA. It's never too late.
You should not give any financial advice directly until you know something about that project which will impact in the long run. There are too many ETH layer 2 in the market and zao is not with binance anymore so i really doubt that BNB will have any impact in the market that it had in the past. What i think is it will lose its market share to other layer 2 networks, and you will see a desperate attempt by binance to keep BNB demands in the market by offering frequent launchpad projects. This will not be a pretty scenario for BNB in the long run.