That is the logical conclusion, Tobias.
However, I am not 100% certain about that applying to devas. Devas have very fine bodies compared to humans, but those are “much more dense” than bodies of brahmas. Devas can utilize all five physical senses (but of course, we cannot directly compare their experiences to ours).
– We do know that human Arahants do live “in this world” until the death of the physical body and attain Parinibbana (full Nibbana or total dissociation from “this world of 31 realms”) only when the physical body dies and the gandhabba separates from it.
– But I do not recall “direct accounts” in the Tipitaka about devas or brahmas attaining Parinibbana upon attaining the Arahanthood. However, since the “body” of a brahma is just a few suddhashtaka just like a human gandhabba coming out of a dead human body, it is very likely that a brahma attains Parinibbana upon attaining the Arahanthood.
– On the other hand, I also have not seen any accounts about “Arahant devas or brahmas” in the Tipitaka either.