Confirmed. The setting can be changed in the "Region & Languague" panel:
gnome-control-center region
(cog icon next to "Input Sources" section)
But this doesn't actually change the corresponding gsetting:
$ gsettings get org.gnome.desktop.input-sources per-window false
Confirmed. The setting can be changed in the "Region & Languague" panel:
gnome- control- center region
(cog icon next to "Input Sources" section)
But this doesn't actually change the corresponding gsetting:
$ gsettings get org.gnome. desktop. input-sources per-window
false