What I *haven't* seen answered in this thread (I read this whole thread just in case), is this scenario:
I'm still on OFW 4.1.0, installed through official means. Can I update to 6.2.0, temporarily, using choidujorNX (or however it's spelled), without burning fuses, access the eShop, then downgrade back to 4.1.0? I realise fuses are burned at every opportunity in 6.2.0, so this might not be possible. But I haven't seen anything that confirms this. I just want to confirm my Nintendo Account is attached to a Switch, so I can purchase some eShop games from my PC's web browser. I'll download them later, when I can "safely" run 6.2.0.
I *do* have a 2nd Switch on 3.0.0, so keeping my 4.1.0 fuses aren't required. But it would be prefered to keep the option available.