I did not!* Through many Pis serving many years and experiencing many power outages.

But I'm using CanaKit power supplies (which supply 5.1 volts, Rpis are notoriously flaky if the voltage dips just a little below 5v) and ATP industrial automotive-grade flash cards (not a big premium in absolute terms, I think 32 gig cards are $13 on Digikey).

* Okay okay, before I switched to those accessories I did have problems.