As the last comment indicates, 2 years later, still no official solution by Apple.
My personal answer: invest the 10 Euros/USDs for the Contexts switcher, and just hope that it keeps working (it. That product works nicely on Big Surfine for my requirements. It appeared to be dead, but there isafter months of no active development any moreactivity, so buying it and hoping the currenta new version keeps working is the best solution one has at this point)was released March 2021.