For me it depends if I believe that the big bang repeats itself at some point. Time is irrelevant if you are dead. A bit like being woken up for school or work

For me it depends if I believe that the big bang repeats itself at some point. Time is irrelevant if you are dead. A bit like being woken up for school or work and believing you just fell asleep a moment ago. So in case the universe dies a heat death and some kind of fluctuation leads to a new big bang and the process repeats infinitely, you will at some point indeed live the same life again. Long story short, you will again need to go to work or school and not even death can save you from that. A bit like it already feels in life too. But if that were true a multiverse would just be another iteration of the existence of the universe with a different path. That they maybe don't happen concurrently isn't relevant, they are just out of phase. So I would guess that counts as a multiverse too, even if it isn't founded in physics, some string theory landscape or possibilities that were not realized.