You can do this by mounting procfs with the hidepid= option. But it breaks systemd when enabled system-wide: https://github.com/systemd/systemd/issues/12955 htt

You can do this by mounting procfs with the hidepid= option. But it breaks systemd when enabled system-wide: https://github.com/systemd/systemd/issues/12955 https://github.com/systemd/systemd/issues/12955 Individual units can opt-in to this behaviour with the ProtectProc= option though. But I don't think there's currently a good way to apply it to users' interactive processes.