Sync tap to click settings from Plasma to SDDM
Add tap to click settings to the list of settings that are applied by the KCM.
https://askubuntu.com/a/1345580 shows the config file settings for tap to click.
Note: There is no Bugzilla product for this. If you want me to add a product for this in Bugzilla please let me know who would be the primary contact.