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Are questions about (abstract) algorithms and datastructures considered on-topic?

I just noticed [this question](https://software.codidact.com/posts/289691) about data structures in the Q&A.
Although algorithms and data structures are often (part of) a solution to a problem when writing software, this question is constructed in a way that aims to leave out the software part entirely.
Especially, because I have a strong feeling that this could just have been a question about a problem in Python.
If it would have been a Python question, I would have had no doubts that it fits in this community, but in its current form it feels a bit misplaced.

I checked the help and the on-topic list seems to have a strong focus on the software aspect, indicating that this question might not quite belong here.
On the other hand, there is nothing in the off-topic list that would indicate that this question does not belong here.

To me, this is more of a computer science question than a programming question.
Therefore, I would expect something like this on cs.stackexchange.com rather than stackoverflow.com.
Currently, there is no computer science community, so these questions could also be included as on-topic here (until this community is created).
On the other hand, it could also be reasonable to require that these kind of questions are to be asked in a concrete software context.

Does anybody have thoughts or opinions about this?