This sounds like an Ubuntu problem. My web server is running Debian 12 and ModemManager isn't even installed. For shiggles I installed it just so I could remove

This sounds like an Ubuntu problem. My web server is running Debian 12 and ModemManager isn't even installed. For shiggles I installed it just so I could remove it. The extra packages it installed are libjim0.81 libmbim-glib4 libmbim-proxy libmbim-utils libqmi-glib5 libqmi-proxy libqmi-utils libqrtr-glib0 usb-modeswitch usb-modeswitch-data and these are exactly the packages it told me I could autoremove after removing ModemManager.