In theory yes but look at what Apple did. In the name of convergence, they destroyed the UI/UX of many of their classic softwares born in the early 2000 and yet

In theory yes but look at what Apple did. In the name of convergence, they destroyed the UI/UX of many of their classic softwares born in the early 2000 and yet you don't even get to run them cross platform anyway. Their performance also sucks balls. I used to be on the other side, but now I think that it's more likely that web apps meet the old standard of the classic software than the old software somehow becoming better and more useful somehow. For now, the only things that have not switched are large software with big performance and latency requirement. As the hardware evolves and the web platform matures even more (especially with web assembly VM) it is unlikely we will go back to previous ways. Heck, even Apple build half their apps with a lot of web technologies mixed with their own stuff. I wish they would just commit to the web completely because this way we could somewhat have decent cross platform experience; but that wouldn't sell many Macs so it's wishful thinking. In the end, they are probably obsoleting themselves in the long run...