maybe that's the way you can do it as long as there are still high cost constraints from ethereum, because sometimes the fees charged can exceed what you have and this is very painful. but since this is something that must be done, of course looking for other alternatives is a must that needs to be done and many alternatives can be used to avoid this, even though swapping is still incurring high costs but avoiding WD is also important. is a necessary and legitimate thing.
Providing a solution using another alternative chain network is not the expected solution OP, this thread aims to find a solution for low withdrawals from the ETH network on top exchanges, currently I am only using binance exchange for trading and withdrawal activities, estimated withdrawals for ETH should be paid under $20.
The OP did not expect that but that's okay because he himself is not also expecting a specific reply or solution but any help thrown here is still an effort so the op would still appreciate it.
In my opinion, the solution that the guy posted is valid and this is one of the solution use by most by eth users due to the high fees of eth and this is also the reason why an exchange implement those features because they know that it can save their costumers and wont be intimidated to use eth. Under 20 usd fee looks small for you but not to all. Why pay it when there are solutions or other alternatives that we can do to drastically decrease that fee?