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If you want to return to the previous default mesa drivers from Debian, you can remove mesa amber with.
sudo apt purge libegl-amber0 libglx-amber0
It should tell you that it will install the previous mesa packages (you can simulate it as explained previously to see what the apt package manager wants to do).Alternatively, you can force the removal of those packages automatically if you force an upgrade with:
sudo apt full-upgrade
(again, you can use the -s option to simulate the operation before it takes place).If you want to keep the amber mesa packages, you can ignore the apt warning.
I did this today, but when I run ‘apt update’, I see the same message: “7 packages can be upgraded. Run ‘apt list –upgradable’ to see them.”
apt list --upgradable
Listing... Done
libegl-mesa0/oldstable-backports 25.0.7-2~bpo12+1 amd64 [upgradable from: 22.3.6-1+deb12u1+fnx1]
libgbm1/oldstable-backports 25.0.7-2~bpo12+1 amd64 [upgradable from: 22.3.6-1+deb12u1+fnx1]
libgl1-mesa-dri/oldstable-backports 25.0.7-2~bpo12+1 amd64 [upgradable from: 22.3.6-1+deb12u1+fnx1]
libglx-mesa0/oldstable-backports 25.0.7-2~bpo12+1 amd64 [upgradable from: 22.3.6-1+deb12u1+fnx1]
libxatracker2/oldstable-backports 25.0.7-2~bpo12+1 amd64 [upgradable from: 22.3.6-1+deb12u1+fnx1]
mesa-va-drivers/oldstable-backports 25.0.7-2~bpo12+1 amd64 [upgradable from: 22.3.6-1+deb12u1+fnx1]
mesa-vulkan-drivers/oldstable-backports 25.0.7-2~bpo12+1 amd64 [upgradable from: 22.3.6-1+deb12u1+fnx1]
sudo apt upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following package was automatically installed and is no longer required:
libspdlog1.10
Use 'sudo apt autoremove' to remove it.
The following packages have been kept back:
libegl-mesa0 libgbm1 libgl1-mesa-dri libglx-mesa0 libxatracker2
mesa-va-drivers mesa-vulkan-drivers
0 upgraded, 0 newly installed, 0 to remove and 7 not upgraded.