Microsoft killed my online life after I called Gaza. Palestinians calling home to Gaza on Skype have had their digital lives destroyed, after Microsoft closed their email accounts without warning.
I think Windows intentionally breaks GRUB dual boot, if you see your computer saying "repairing Windows" it's a good chance that it's breaking your dual boot setup
They definitely succeed because it made me stop using Linux for a long time, I didn't have time to fix it and didn't know how. It happened multiple times.
I don't think it does that if you have Linux on a completely separate drive instead of just a separate partition, but I'm not sure. In any case the solution is just to reinstall grub. Grab a live usb of some linux distro, chroot into your linux install, then grub-install --target=x86_64-efi --efi-directory=/path/to/efi/dir --bootloader-id=GRUB (on uefi, if on bios do whatever the command is for bios, and replace the target architecture with whatever your architecture is, etc)
Same! But also compatability with plug and play things, proprietary software, learning command lines and file structure, fixing things... I make a living at my computer so I need it to work. I know it's more stable, but getting everything set up first for me in the past was too much.
I switched to only booting the windows drive directly from BIOS boot menu, linux drive as default. I never boot up the windows partition tbh, it was only there for VR and I lost interest in that pretty early