I bought stand alone LR6 in 2017 but for some reason switched to the cloud. Like many I can't really see the point of the cloud as LR6 did everything I needed.
So I reinstalled LR6 but at the end of the process I had to log into my Adobe account to complete the installation.Lo and behold what popped up was the cloud version and not my LR6. Someone suggested opening an Adobe account with a different email address.This has worked, I simply log into the new account at the end of installation. I can now use LR6, I will terminate my cloud subscription at the end of my period.
There are features missing such as the de-haze filter but this can be overcome by using plug-ins, some are free, some there is a small charge. Adobe say that LR6 is much slower than cloud, that may be the case but I hardly notice it, probably because I'm slow anyway!