nope, TRX is still more expensive at 5 TRX fee compared to some other options on betfury.
i think the cheapest would be USDT on ETH or maybe LTC. the withdraw fee on both is less than $0.1 and you can easily swap them elsewhere for whatever coin you want.
Surprisingly, erc-20 transfers have become cheaper than trc-20 transfers. Honestly, I can't even remember the last time the ETH network had such low fees that are there now. So yeah, erc-20 seems to be a favorable way to deposit or withdraw from gambling platforms and exchanges right now.