We do indeed take stuff apart ... for appliances (and TV's), this seems the best way to recycle things to component streams and reduce the load on the dump.
And, yes, we start by researching what others do when taking things apart. If someone says the caps in a device need discharging before touching, that's another step for our procedure for that
class of device.
Haven't yet done a microwave ourselves, as we got lucky and found someone who wanted our last failing unit (an appliance shop wanted it, probably for spare parts).
I agree, the rule is ... research the rules, before attempting anything ... specialty repair/recycle forums, instructables.com, inspectapedia, etc. ... the info already out there is amazing.
Never
enough reminders about safety ...