I’m not sure why people make a big deal out of downgrading as long as you know no fuses where burnt upgrading to your 7.0 firmware, just grab the 6.2 firmware files put it on your sd card in a folder boot up ChoiDujournx and select your 6.2 folder and choose exfat firmware install and reboot, job done it’s easy as that! No need for that downgrade to 5x rubbish, I’ve done it myself from 6.2 to 7.0.1 and back to 6.2 no issues whatsoever when I did it. Remember as long as you 100% know for sure no fuses are burnt when upgrading your switch firmware there’s no reason why you cannot downgrade back again to the same firmware.