My D7 lost its mapping capability (including markerless no go zone) a few weeks ago due to the new owner pulling the plug early on their server. An enthusiast is jerry rigging an offline solution thanks to a vuln in an earlier firmware, but for those unwilling to solder an esp32 to the debug port of their vacuum they essential got a lesser robot overnight.
Can't vouch for their newer models just because this one has worked so well for years.