Dining tables make the best desks. Lots of surface area, and plenty of room underneath for cables and boxen.
I work from a proper ergonomic office desk now but it beat many other alternatives including a dining table and various purpose-made 'home office' desks.
(Accepting I got lucky with the height of the radiator).
Working from home is not an excuse for the employers for allowing you to work in an un-ergonomic environment.
Also working with a remote colleague who doesn’t have good webcam/microphone/headphones is an absolute nightmare. I’m sure most of us have had colleagues that were frustratingly hard to communicate with remotely, and I’m sure most of us have avoided communicating with them because of it.