There seems to be a general misunderstanding by everyone on this thread as to how universes in DC comics works.
There are designated universes. These universes have a label of some kind (such as Earth-1, Earth-2, New Earth etc) This can be a number, A string of letters, A combination of both numbers and letters, some are even represented by symbols, and most exotically there are even unnumbered worlds. These are the main universes of the multiverse.
Each of these main universes has a spatial and temporal half. On both the time and space halves, there are branches that form out into infinity at every point in a universe’s timeline. On the time half they are referred to as timelines and on the space half they have been most frequently referred to as quantum offshoot universes (as well as other names). These timelines and offshoot universes are part of the overall space-time structure of its parent universe, they are NOT separate designated worlds in the multiverse.
The reality is most characters, such as Herald tiers like Superman, ARE NOT impacting the entire space time structure of a single universe. Beings that can include low tier cosmic beings like The Time Trapper, The Infinite Man, Imperiex Prime, and Zero Hour Parallax.
I do not know why people are mentioning the Bleed as it is not at all relevant here. The Bleed exists in between all the levels of the Divine Continuum including even the Fifth Dimension (and likely beyond but Elizio33 and only ever got up to the Fifth Dimensional portion in our discussions of the Bleed in the main DC comics discussion thread) as such it is not something that you can scale a person to without extensive evidence. Only beings like Monarch who have mastery over the Bleed scale to its upper levels. There is of course the local portions of the Bleed, which most people think of when discussing the Bleed, that encompass all universes and timelines but even this lesser version is not relevant to the conversation at hand.
In my first post on this website I said I would eventually get around to this stuff when I have time:
https://vsbattles.fandom.com/wiki/U..._How_many_Universes_in_the_main_DC_Multiverse