How to REALLY, COMPLETELY disable Gnome tracker?

Disabling the resource-hogging, data-copying Gnome tracker daemons is much harder than it ought to be. I'm running a recent installation of (stable) Debian 11.2 with Gnome. One suggestion I found was to edit all /etc/xdg/autostart/tracker-*.desktop files such that X-GNOME-Autostart-enabled=false (it was true) Although this allegedly worked for somebody, once upon a time, alas, this change had no discernible effect. Since I'm running version 2 of the tracker stuff I also tried:

systemctl --user mask tracker-store.service tracker-miner-fs.service tracker-miner-rss.service tracker-extract.service tracker-miner-apps.service tracker-writeback.service

That worked, evidently, although the system log still constantly reports that tracker services are "successful". Maybe those entries are artifacts of how systemd is being configured for tracker services. The problem with that "masking" method turned out to be that the reverse operation (mask -> unmask), to re-enable tracker daemons did not work for me. (Yes, I rebooted, as instructed. Nevertheless, the tracker daemons didn't return to operation.)