Not so much distros but more DEs like Gnome and KDE.
Especially Gnome has some usable stuff for Elive methinks.
As a first line of action, I replaced the already installed 'xserxserver-xorg-input-mutouchver-xorg-input-mutouch' with 'xserver-xorg-input-multitouch' ..... in the sense that installing the latter automically un-installs 'mutouch'.
This works quite well except when using web-browsers like Chrome and/or Firefox, as they have their own multifinger functionality. This sometimes causes the keyboard and touchpad (if connected) to become unresponsive ..... but never the touch-screen, that keeps it's functionality at all times.
I was in E27 on the tablet, i.e wasn't trying in E16. 
Anyway, it would seem that 'touch-egg' in combo with 'touche' does give some options there.
E27 not so much yet (or I haven't found them yet) but ultimately, once the list (of what's missing) is complete, we can start pestering Rasterman to add it. 
There is some base touchscreen functionality in 'grub2' (i.e the kernel) as you can select with touch in the menu(if grub shows, that is).
Having a virtual keyboard is a whole different story there, I understand. There is some talk of keyfiles being used but that, IMO would make LUKS look stupid and superfluous.....something like auto-login to your encrypted system. 
I'll do some more searching on LUKS, when I have a spare moment.
Which I had after showering. 
'unl0kr' looks interesting enough and is available in Trixi repos.
I don't have the tablet available ATM so maybe I'll see what it gives tomorrow ( is use my lunch break for that )
It looks promising on the install prompt on my workhorse thinkpad.
Which after hitting 'Enter' gives:
Processing triggers for initramfs-tools (0.148.4) ...
update-initramfs: Generating /boot/initrd.img-7.1.3+deb13-amd64
libkmod: ERROR: conf_files_filter_out: Directories inside directories are not supported: /etc/modprobe.d/virtualbox-dkms.conf
libkmod: ERROR: conf_files_filter_out: Directories inside directories are not supported: /etc/modprobe.d/virtualbox-dkms.conf
libkmod: ERROR: conf_files_filter_out: Directories inside directories are not supported: /etc/modprobe.d/virtualbox-dkms.conf
libkmod: ERROR: conf_files_filter_out: Directories inside directories are not supported: /etc/modprobe.d/virtualbox-dkms.conf
I: The initramfs will attempt to resume from /dev/nvme0n1p2
I: (UUID=430db896-16e5-4d27-9134-bebabf2cf6ca)
I: Set the RESUME variable to override this.
libkmod: ERROR: conf_files_filter_out: Directories inside directories are not supported: /etc/modprobe.d/virtualbox-dkms.conf
libkmod: ERROR: conf_files_filter_out: Directories inside directories are not supported: /etc/modprobe.d/virtualbox-dkms.conf
zstd: error 70 : Write error : cannot write block : No space left on device
E: mkinitramfs failure cpio 141
E: mkinitramfs failure zstd -q -9 -T0 70
update-initramfs: failed for /boot/initrd.img-7.1.3+deb13-amd64 with 1.
dpkg: error processing package initramfs-tools (--configure):
installed initramfs-tools package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
initramfs-tools
Error: Sub-process /usr/bin/dpkg returned an error code (1)
This stupid 'virtualbox-dkms' shit is getting on my nerves, I stopped using virtualbox altogether on this machine. 
So I removed the abusive file/directory:
sudo rm -rf /etc/modprobe.d/virtualbox-dkms.conf
and tried installing 'unl0kr' again but:
I get this"
Summary:
Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 0
1 not fully installed or removed.
Space needed: 0 B / 377 GB available
Continue? [Y/n]
Setting up initramfs-tools (0.148.4) ...
update-initramfs: deferring update (trigger activated)
Processing triggers for initramfs-tools (0.148.4) ...
update-initramfs: Generating /boot/initrd.img-7.1.3+deb13-amd64
I: The initramfs will attempt to resume from /dev/nvme0n1p2
I: (UUID=430db896-16e5-4d27-9134-bebabf2cf6ca)
I: Set the RESUME variable to override this.
zstd: error 70 : Write error : cannot write block : No space left on device
E: mkinitramfs failure zstd -q -9 -T0 70
update-initramfs: failed for /boot/initrd.img-7.1.3+deb13-amd64 with 1.
dpkg: error processing package initramfs-tools (--configure):
installed initramfs-tools package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
initramfs-tools
Error: Sub-process /usr/bin/dpkg returned an error code (1)
What I did come across is that this little modprobe thingy might be at the root of the nvidia issues in https://forum.elivelinux.org/t/trixie-upgrade-betatestings
