Hello,
the last night update and one reboot: After login there is nothing. Only a frozen mouse.
I did this without success (sdd is the USB-Stick with Live-Manjaro):
sudo fdisk -l:
Disk /dev/sda: 931,51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: CT1000MX500SSD1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x932dd4f2
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 1187839 1185792 579M 7 HPFS/NTFS/exFAT
/dev/sda2 * 1187840 266239999 265052160 126,4G 7 HPFS/NTFS/exFAT
/dev/sda3 266240000 1911541759 1645301760 784,5G 83 Linux
/dev/sda4 1911541760 1953523711 41981952 20G f W95 Ext'd (LBA)
/dev/sda5 1911543808 1953523711 41979904 20G 82 Linux swap / Solaris
Disk /dev/sdb: 7,28 TiB, 8001563222016 bytes, 15628053168 sectors
Disk model: ST8000DM004-2U91
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sdc: 2,73 TiB, 3000592982016 bytes, 5860533168 sectors
Disk model: WDC WD30EZRX-00D
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 8A450C41-08D4-465F-BFB2-D26C0856804E
Device Start End Sectors Size Type
/dev/sdc1 2048 2931892223 2931890176 1,4T Microsoft basic data
/dev/sdc2 2931892224 5860532223 2928640000 1,4T Microsoft basic data
Disk /dev/sdd: 14,51 GiB, 15581839360 bytes, 30433280 sectors
Disk model: Disk 2.0
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Device Boot Start End Sectors Size Id Type
/dev/sdd1 * 64 8273211 8273148 3,9G 0 Empty
/dev/sdd2 8273212 8281403 8192 4M ef EFI (FAT-12/16/32)
Disk /dev/loop0: 64,65 MiB, 67788800 bytes, 132400 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop1: 1,96 GiB, 2103304192 bytes, 4108016 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop2: 893,05 MiB, 936435712 bytes, 1828976 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop3: 928,31 MiB, 973406208 bytes, 1901184 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
sudo mount /dev/sda3 /mnt
sudo mount --bind/dev /mnt/dev
mount: unrecognized option '--bind/dev'
Try 'mount --help' for more information.
sudo mount --bind /dev /mnt/dev
sudo mount --bind /sys /mnt/sys
sudo mount --bind /proc /mnt/proc
sudo chroot /mnt
# update-grub:
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-6.12-x86_64
Found initrd image: /boot/intel-ucode.img /boot/initramfs-6.12-x86_64.img
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
ERROR: mkdir /var/lock/dmraid
grub-probe: error: cannot find a GRUB drive for /dev/sdd1. Check your device.map.
grub-probe: error: cannot find a GRUB drive for /dev/sdd1. Check your device.map.
Found Windows 10 on /dev/sda2
Adding boot menu entry for UEFI Firmware Settings ...
Found memtest86+ image: /boot/memtest86+/memtest.bin
done
update-grub:
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-6.12-x86_64
Found initrd image: /boot/intel-ucode.img /boot/initramfs-6.12-x86_64.img
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
grub-probe: error: cannot find a GRUB drive for /dev/sdd1. Check your device.map.
grub-probe: error: cannot find a GRUB drive for /dev/sdd1. Check your device.map.
Found Windows 10 on /dev/sda2
Adding boot menu entry for UEFI Firmware Settings ...
Found memtest86+ image: /boot/memtest86+/memtest.bin
done
Then I saw this and did it with the same result.
I saw, that at the start (login window) is only Gnome and Gnome Classic to choosse. No more wayland.

