What’s actually happening here is Windows is setting its bootloader first in your EFI when it gets updated. Linux isn’t gone, you just have to press the “boot another drive” button and boot to it, or go into your EFI setup and switch the bootloader back to the Linux one.
Linuxes do the same thing when updating their bootloader.
Note for the Ackshually crowd: If you’re still booting MBR (which comes with the partition eating risk on dual boots) you have a system that is older than Windows 8 - 11+ years old, so eating the MBR is something you’ll have to deal with unconventionally, as all modern systems, OS, and hardware expect you to be using EFI.
Someone once commented about a regional ISP with a customer base about five figures in size. Did they use a database system to track customer billing? Nope. All the customers and their billing info are on one spreadsheet. Billing customers means manually crawling through the spreadsheet and typing up the bill.