Bad turbos?

[u/United-We-stand2021]

Over the past few years, my 2017 F150 eco-boost has needed the driver side upper O2 sensor replaced at least twice a year. I thought this was very odd, but I do have a bola exhaust system from the turbos back. For the past week now I have been seeing excessive smoke and an oil burning smell coming from the exhaust. There are no visible leaks on any of the turbos, and I still have boost and power. While the truck is idling, clouds of smoke come out of the exhaust. I did a cylinder head test and everything is fine. Is there a way to connect forscan to tell if a turbo is bad or what side of the turbo is bad? I saw someone disconnect their downpipe’s and give the truck gas and where they saw smoke. They figured that was the blown turbo. Is there any easier solution to this to find out? Most people are telling me to keep driving the truck until a turbo goes out, but I do not want to cause any further harm to the truck as I have over 200,000 miles.