for firefox, Dolphin and desktop should be less of a cluttered thing.
give dolphin a proper toolbar and Kate too.
remove all nagware from firefox but add uBlock-add-on asf.
a plain colour desktop is much better than all fancy cluttering stuff which is only ONE click away anyway, for those who prefer cluttered desktops.
Oh, and of course: follow the lead of KaOS distro, and abandon KickOff for KMenu = KickOffMenu.
makes everyone happy and saves clicks a lot.