In general, problems such as performance, stability will certainly be difficult to be objectively considered when using this method, because practically no operating system is actually running. What we provide is primarily the basic interface and functionality information.
There is actually nothing more convenient than finding a friend who is using a machine running the operating system you want to learn to borrow from the experience. However, with the number of extremely large devices and operating systems today, it is impossible to say that there are some alternatives. In your experience, what ways to test new operating systems are appearing almost every year a few times now?