Yes and no. I have 800W “gold” PSU here and it is kind of too low power for my hardware.
I have 2080TI, few SSD drives and 2 mechanical ones, 800W is bit lower than minimal recommended power.
Usually everything is fine, until is set any unreal based game to no VSYNC, then FPS goes up to 90-100 and sudden restarts happen. This same stuff happened since UT3 years ago, so by now i know to limit FPS for unreal based games, this does not let them go for max FPS and max power consumption.