Those are not difficult to fix. But yes, it is something that we should worry about since Windows updates are breaking a lot of things.
I would suggest using Dual boot and if Windows 10 takes over, let it do that. Once your _work from home_ requirements are over, you can very easily recover your Linux using tools like _Boot-repair_ and so on. There are also tools inside Windows 10, EasyBCD for example, which will allow to recover lost Linux partitions without hassle.
Steer clear of dual booting. It'll cost you more than it's worth in issues if GRUB is overwritten by Windows, or the MBR overwritten by GRUB. The Zotac 1050 is probably using 3D acceleration in VirtualBox which should be disabled.
Thanks, i also want to avoid it. Just for 2 or 3 weeks max i don't want to screw my existing Linux setup. I need to manage with Virtualbox. Wine's Firefox 51 version doesn't work properly. @phenomlab any idea on using Firefox with Wine?