Since he mentioned that it has been quite a while that he's been into crypto, high likely that he doesn't know that there are different networks that are now accommodating BTC. These networks let you choose where you want your btc sent, if you want to avoid high fees. But you need to make sure that you know the difference of dealing with these different networks. If it is not clear with you, better stick to the original BTC network, in this case - BTC. It is legal of course having different networks, it is up to you how you will use them to your advantage.
all because because the ERC20 fee is indeed very large so many alternatives are made to avoid unwanted things, especially for bounty hunters who always have difficulty because what they receive is no longer worth the cost to be paid, resulting in coins cannot be transferred. so there are other platforms that can be used, including bitcoin, of course.
but as long as the goal is for good there is no problem, but it's true what you said if he don't know how to use it, it's better to just use the bitcoin platform so that it doesn't go wrong and get problem without clarity.
because now the development of the platform is growing very fast because of the high cost.