Virtual background for online meetings

It has been suggested that, on some occasions, I should be discreet about from where I am working. This seems easier to achieve if I habitually use virtual backgrounds in Teams, Zoom, etc., giving rise to the awkward choice of what background. Abstractly, I would prefer it not to be overly striking, not requiring comment, and it is fine for it not to be widely recognized. Though, somebody else at work uses a background that frustrates me in seeming to depict the interior of a room from a work of science fiction, either a bigger-budget effort from no earlier than the seventies, or lower-budget a couple of decades later, but I cannot place it, and I am not used to not being able to place such. Someday I may have to ask. Still, that kind of thing may be an option, among others.