Recommended privacy tweaks on new install?

Just did a clean install of Kubuntu 25.10. Are there any configuration changes I can make to have my system remember less of what I do?

• Is there any Ubuntu specific telemetry that I have to explicitly opt out of?

• By default do either Kubuntu and/or KDE save a log of recently accessed files?

• Does the system keep a history of everything copied to the clipboard?

• Does it keep a log of all drives or network shares mounted?

Anything else similar that I didn't think of?