I myself have noticed that the transaction fee of BSC network is increasing day by day. However, even if the transaction fee increases, it is still tolerable. Because every transaction on ETH network costs about $10-15. The transaction fee of BSC network is much less than that.
How I wish I can send $10 - $15 for ETH fees, because I've been spending for almost $55 just to proceed my transactions on Metamask. Anyway, the fees increase on BSC Network is still cheap, BNB network still cheap compare to ETH these two are great network with a great project, even if the fees is expensive if you think you are investing on a good project, you can get it back. Fees increases because of the traffic on the network, I guess it happens on every network.
It is certainly a huge huge problem in ETH network, without that being fixed there will always be competition for ETH that will try to replicate whatever ETH is doing, if it is DeFi then there will be other chains that does Defi, if it is NFT gaming then there will be NFT gaming, basically whatever ETH is doing just because it is losing a lot of money for people who spends their money on fee's and the entry point is very expensive, we will keep having the same problem over and over again.
BNB is great just because of that, the other day I paid 62 cents to send money to my binance account, 62 CENTS, I do not remember the last time ETH had anything under 1 dollar, which is the biggest problem. Don't get me wrong I do agree that it is used a lot but it should find a way to be cheap and fast while being used a lot.