The issue with DOOM is that its lore power scalers ignore the abundant proof stacked against their narrative. Hugo Martin has confirmed TWICE that he uses "dimensions" and "universes" inter-changeably, yet many people treat "dimensions" in DOOM as higher dimensions. Also, Urdak is stated to be the "6th dimension", but people just ignore that earth is also stated to be "5th dimension" and the Sentinel planet is called "4th dimension" in the same lore.
The "transcending Space and Time" statement for Hell is also iffy because there's no unquantifiably infinite difference and/or R>F property of it mentioned in a primary/secondary canon material, or clarified by a dev. The Maykr God mind viewing infinite timelines could just be future possibilities, and it doesn't necessarily mean that the DOOM multiverse contains infinite timelines.
Not to mention, Urdak is called a "higher" dimension and a Hell a "lower" dimension i.e. they are simply stacked above and below the mortal universe respectively. The Icon of Sin can destroy the mortal universe over time by creating a black hole big enough to do so, but that's not raw power. That's just gravity manipulation hax.
Although I shouldn't talk about all this here.