Use "thin non-breaking space"
Using thin breaking spaces with Plasma
"Use "thin non-breaking space"" on https://aligot-death.space, available at https://aligot-death.space/wiki/sysadmin/linux/thin-breaking-space-en
Useful for french typography.
On Plasma Desktop:
- Settings > Keyboard > Key Bindings
- check "Configure keyboard options"
- search for "non-breaking"
- check "non-breaking space at the third level for Alt-Gr + Space
(for other combinations like Shift + Space, see https://forums.linuxmint.com/viewtopic.php?t=362965)