For now Trc20 ghot increased their fee's when to transaction in centralized exchange, just not so sure if in dex it is low.
Because Trc20 network is now very congested so it's fees also increased. I used Trc20 network just to transafer Usdt in my trust wallet to centralized exchange binance, fee's little bit increased this is right, if in binance chain fees is lower than Trc-20 so bep20 is my favorite, i don't need to use trc20.