Daisy-chained electrical outlet circuit tracing complexity

“Should I leave the neutral disconnected when replacing a smart switch with a conventional switch? My home has switches from Deako, which are a proprietary quick-change style switch with various dimmers and wifi enabled upgrades available. I'm replacing one with a regular Leviton Decora rocker switch. This is a single switch that controls a single light (the pantry). When I removed the Deako box, I found 4 wires labeled hot, load, ground, and neutral. I swapped in my Leviton Decora rocker switch ”

“Removing daisy chained outlets; how to properly restore the chain? Problem I am removing two outlets for occupant safety reasons. I have already removed both outlets and capped all wires found within. But now, when I turn the breaker back on, one outlet comes back, but the ceiling light doesn't receive power, and that's bad. So now I think they were probably daisy chained to each other or to other outlets in the same room. One outlet was partially switched. The other wasn't. I've completely remo”

“Very old wire identification for replacing an old receptacle I am ready to replace an old receptacle by a new one. Pictured is the old bugger. It is 15 Amp, not clear when it was installed, but the wires seem to have cloth insulation and you cannot tell color of either of them. It has been some time since I changed a receptacle and I swear I do not remember seeing 4 wires; I remember only two per receptacle. So I took off the two wires from the bottom (A and C), and B and D are still in place. A”