I have an older x86 tablet that I tinker with. The DE I have found to work the best with touch only is KDE Plasma Mobile. Reliable and works similarly to Android.
GNOME has been surprisingly unstable, like an update might ruin some touch capability and make the tablet unusable. It also had weird quirks like not being able to move some windows around, or the cursor some how getting stuck and needing to plug in a mouse to move it again.
Currently I am running EndeavourOS with plasma mobile installed from the AUR which works really well the only thing that sucks is when there is an update for the DE and I have to build the package, which takes a while on that tablet.
Whichever distro you pick, go with the KDE version, then install “plasma-mobile” from the repos.
Now that I think about it I think you are right. I think I was thinking about the word prediction for the keyboard they didn’t have.