> installing Windows will still make your Linux system unbootable until you fix it with a rescue disk

This is no longer true. On UEFI systems the only thing you have to do normally is fix the boot order. In fact installing Linux first and Windows second tends to be the better dual-boot strategy nowadays.

Fixing the boot order can be done from UEFI setup, and even from Windows command line

  bcdedit /enum firmware
  bcdedit /set {fwbootmgr} displayorder {yourlinuxuuid} /addfirst

(Put single quotes around {} if you use PowerShell instead of CMD.exe)