Outside London the property market is fluid and looks like prices steady at least - probably on the rise. This is almost certainly due to people's behavioural changes rather than economic ones, bar the stamp duty relief which doesn't mean as much to the higher value London market. How long this will go on for we don't know. You might find, unless you price super-keenly, that a sale in SE22 and the immediate area will be a lot slower than back in 2012-2016 and that you're potentially priced out of your preferred out-of-town destinations, depending where and what they are. On another note some areas, Brighton, for example, are now so expensive that some movers are actually coming from outside and back into the capital again.
Personally I'd go for a proper rural location as far from a city as possible (if it was workable) rather than live anywhere within 50 or probably 75 miles of London! England has become a very suburban place...