I just watched a 5 minute video explaining how this impacts miner fees etc. Extremely convoluted and complicated. To me nano and the other 'fee-less', instant

I just watched a 5 minute video explaining how this impacts miner fees etc. Extremely convoluted and complicated. To me nano and the other 'fee-less', instant transfer coins represent the future of crytos. I missed the train on ETH and BTC and now I feel like there's too much to catch up to, but also feel there are much simpler and usable coins (in the real world) are coming.