And Debian fluff it of course...
The update for grub2 released as DSA 4735-1 caused a boot-regression
when chainloading another bootlaoder and breaking notably dual-boot with
Windows. Updated grub2 packages are now available to correct this issue.
For the stable distribution (buster), this problem has been fixed in
version 2.02+dfsg1-20+deb10u2.
Biting the hand that feeds IT
