I submitted my PhD thesis and went to work in a company where my PhD supervisor co-founded. I submitted part of my thesis work to a conference, and it got accepted. Now my supervisor asked me to affiliate the paper with the new institution. Is it alright if I do this? The thesis work was mostly done at the university, although under the supervision of the same person.
Answer by @ZeroTheHero is fine, but I don't think you need to be that explicit about the details, or at least it's not the norm. Having multiple affiliations is not a rare thing, and you can simply write both of the institutions in your affiliation(s) without any additional comments.