in a technical sense, anyway. she "occupies" a thought-malleable demiplane, generally referred to as the Beanbag (more lore there but tldr "because beanbags are comfy"), which she can enter and exit at will (and also invite others into). but, the form she appears in is really just an avatar made of the same think-it-real as the geography of the Beanbag; at a deeper level, they are both extensions of the same consciousness.
she also sometimes manifests avatars directly within other universes, and may even give them full autonomy and ignorance of their extended nature, but their experiences are shared back and she can re-occupy them if it seems like fun. you can meet Akhra in any reality, and she is always the same Akhra, whether or not she knows it at the time.
even if an avatar is locally destroyed, it could just be remade, so she cannot permanently die in any universe... except this one, since that fundamental consciousness from which she springs is mine. (which is not just me waxing philosophical, her fictional self also canonically knows this because there was fun to be had with that dynamic.) so yeah tldr if I got isekai'd down one level? pretty much godhood, fuck yes 
A fun contrast that I noticed a couple of years back BTW... so, my two oldest and most-used fursonae, both vintage 1995, are Lenester and Akhra. All of that lore for Akhra was developed by 2000 (except the insight that Akhra and the Beanbag are functionally one entity, which I actually just came to while composing the above, but the stuff that led to it was there).
Lenester, who was he/him until 2021 because my eggshell had concrete walls, has an entirely different relationship to multiversal fiction. E isn't tied to any given setting, but if e is present, es history there is distinct from any other incarnation, and must follow local rules. There are often shared themes, but every Lenester is a different Lenester. I'm now realizing this is (coincidentally!) best summarized as "Spiderverse rules."
So the deeply closeted denial-soaked trans girl came up with a boy OC who is explicitly fictional and rigorously bound by rules imposed by others, and a girl OC who is a self-realizing omniversal truth. Lol. Lmao. There were no signs.
