Since I can't edit and forgot to say, should my company ever grow to the size where an office manager role is needed it will not be called Office Manager since you give some people the word Manager anywhere in their job title and they start planning to invade Poland.

Not sure what I would call it, Office Support Specialist or something suitably ambiguous I guess, the role is largely one of keeping the lights on, making sure the ISP is paid etc it's not a management role in the sense of dealing with staff etc.

Title inflation is a pernicious problem.