I am unable to confirm Hirsute due to an unrelated issue. During the base install of the chroot on Hirsute, there is a failure  for mesa drivers

command: 

lb_chroot_install-packages install

---
shared-mime-inf  ignore old unsatisfied important dependency on libnss-nis:amd64
  ignore old unsatisfied important dependency on libnss-nisplus:amd64
  ignore old unsatisfied important dependency on e2fsprogs-l10n:amd64
  ignore old unsatisfied important dependency on libgpg-error-l10n:amd64
  ignore old unsatisfied important dependency on update-motd:amd64
  Installing gir1.2-clutter-1.0:amd64 as Depends of gnome-shell-extension-desktop-icons-ng:amd64
    Installing gir1.2-cogl-1.0:amd64 as Depends of gir1.2-clutter-1.0:amd64
    Installing gir1.2-coglpango-1.0:amd64 as Depends of gir1.2-clutter-1.0:amd64
  Installing gir1.2-clutter-gst-3.0:amd64 as Depends of gnome-shell-extension-desktop-icons-ng:amd64
  Installing gir1.2-gtkclutter-1.0:amd64 as Depends of gnome-shell-extension-desktop-icons-ng:amd64
  libgl1-mesa-dri:amd64 Depends on libllvm12:amd64 < none @un H > (>= 1:9~svn298832-1~) can't be satisfied!
  mesa-vulkan-drivers:amd64 Depends on libllvm12:amd64 < none @un H > (>= 1:9~svn298832-1~) can't be satisfied!
  libxatracker2:amd64 Depends on libllvm12:amd64 < none @un H > (>= 1:9~svn298832-1~) can't be satisfied!
  Installing linux-image-generic:amd64 as Depends of linux-generic:amd64
    Installing linux-image-5.11.0-38-generic:amd64 as Depends of linux-image-generic:amd64
      Installing linux-modules-5.11.0-38-generic:amd64 as Depends of linux-image-5.11.0-38-generic:amd64
      Installing grub-pc:amd64 as Recommends of linux-image-5.11.0-38-generic:amd64
        Installing grub-common:amd64 as Depends of grub-pc:amd64
          Installing os-prober:amd64 as Recommends of grub-common:amd64
        Installing grub2-common:amd64 as Depends of grub-pc:amd64
        Installing grub-pc-bin:amd64 as Depends of grub-pc:amd64
        Installing grub-gfxpayload-lists:amd64 as Depends of grub-pc:amd64
    Installing linux-modules-extra-5.11.0-38-generic:amd64 as Depends of linux-image-generic:amd64
      Installing crda:amd64 as Depends of linux-modules-extra-5.11.0-38-generic:amd64
        Installing iw:amd64 as Depends of crda:amd64
    Installing linux-firmware:amd64 as Depends of linux-image-generic:amd64
    Installing intel-microcode:amd64 as Depends of linux-image-generic:amd64
      Installing iucode-tool:amd64 as Depends of intel-microcode:amd64
    Installing amd64-microcode:amd64 as Depends of linux-image-generic:amd64
    Installing thermald:amd64 as Recommends of linux-image-generic:amd64
  Installing linux-headers-generic:amd64 as Depends of linux-generic:amd64
    Installing linux-headers-5.11.0-38-generic:amd64 as Depends of linux-headers-generic:amd64
      Installing linux-headers-5.11.0-38:amd64 as Depends of linux-headers-5.11.0-38-generic:amd64
---

leads to:
The following packages have unmet dependencies:
 libgl1-mesa-dri : Depends: libllvm12 (>= 1:9~svn298832-1~) but it is not installable
 libxatracker2 : Depends: libllvm12 (>= 1:9~svn298832-1~) but it is not installable
 mesa-vulkan-drivers : Depends: libllvm12 (>= 1:9~svn298832-1~) but it is not installable

However, this is not an issue with code change under test. I'll look into if there are open bugs related to this on Hirsute somewhere already.