I remember interviewing when I was chubbier post-COVID thinking that the only evidence the interviewer has of my self-control and drive is that I have none. Best case scenario, you are interviewing a temporarily embarrassed skinny person.
Noble prize winner James Watson, famous bluntly tell it like it is-er, said he didn't hire fat people for this reason.
(This has since been rectified by reinstating strength training and dietary controls, which I recommend.)