* keyboard-configuration/optionscode:
grp:alt_shift_toggle,grp_led:scroll
Could you try to change in /etc/default/keyboard:
XKBOPTIONS="grp:alt_shift_toggle,grp_led:scroll"
into
XKBOPTIONS="grp:lalt_lshift_toggle,grp_led:scroll"
(two additional 'l' to enable only alt-shift and not altgr-shift)
Thanks! I've changed this and will see how it works after reboot.
I do think it would make sense to allow both Shift keys, but only left
Alt though. If anything, for accessibility reasons at least.
I also wonder if the combination of grp:alt_shift_toggle and level3/4
shift on AltGr works differently in X/Wayland.
Cheers!