As we all have been working from home or remotely due to Covid-19, our work place has been changed to home. So if we now face any issue related to work, is it suitable to ask it in The Workplace or do we need to a new site (proposal) for this?
Given the (currently) 224 questions in the telecommute tag, it's absolutely fine (provided it meets the other criteria mentioned in the Help Center). The Workplace isn't just a physical place; at home you can be equally interacting with your colleagues and customers.
To add to the other answer provided by Glorfindel, we have the term (now more than even) "Home Office", so as long as the question is about navigating in the workplace (be it a HQ, regional office, or as you ask - about home office), it should be fine.