I dual boot Ubuntu and Windows 10 and spend about an even amount of time between the two.
I found myself wishing there was something that wouldn't need a restart but didn't have the large overhead of virtualization from within a full OS.
In other words, is something like a small footprint OS that just switches between Ubuntu and Windows possible or would it still run as slowly as for instance Ubuntu on Windows Hyper-V?
I tried Hyper-V with a dedicated drive, but that didn't quite feel like a full-fledged OS due to a number of reasons one being as far as I know, it is not possible to utilize my graphics card from ubuntu within Hyper-V.