Dude is the wiki like… irresponsible in its silence on this?
I’ve been trying to learn about metal (genre, history, types, etc) recently, mostly through listening, and haven’t listened to burzum yet or even heard about him. But when I went to the wikipedia article there’s no mention of any WS keywords save for the name of his label, which lays open his ~~shiftiness~~ shittiness. Did he sue or something?

I’ve experienced this breaker bypass issue a few times and in each case it was a ground fault.
Why this can bypass breaker and trip the mains: In most countries, the common inexpensive breakers in residential panel boxes are not GFCIs. They will catch and interrupt marginal overdraw before it starts a fire but won’t trip fast enough in the case of a ground fault, which is one of the reasons fire codes usually require GFCI outlets anywhere near running water. Since the mains in MDL and housing complexes are GFCI, they can trip faster than the subpanel breakers in the case of a ground fault.
One case that might be relevant to you since you had reason to suspect your oven: a microwave oven door closure sensor became misaligned and would intermittently fail to report closure. It was one of two that controlled a kill-switch relay for the magnetron (the main power drawing component in a MW). The easter egg in their circuit design was that if sensor A failed to report door was closed, the oven would simply act as if door was open, but if sensor B failed to report door was closed, closing the door would instantly cause a ground fault.
Diagnostic recommendation: get some GFCI adapters to use on any big AC appliances you suspect might be causing the fault, like the oven you mentioned, so that next time it happens only the culprit appliance will lose power and you’ll know what to repair/replace.
ETA: the GFCI adapters are common and inexpensive, and your landlord would likely rather pay for a few of those than an electrician visit. Either way, this absolutely is the landlord’s responsibility, especially if your lease includes the appliances.