Windows updates wipes your bootloader
If windows updated and wiped your linux bootloader, follow these steps. https://techblog.dev/posts/2021/12/how-to-fix-missing-grub-boot-menu-after-a-windows-update/
If windows updated and wiped your linux bootloader, follow these steps. https://techblog.dev/posts/2021/12/how-to-fix-missing-grub-boot-menu-after-a-windows-update/