Where did you get this information?Not only that, it must have bern on for a week or two, and you will have needed to have travelled in and out of your home during that time so the phone learned your home.
Since 1 week I have switched on Significant locations again - only for SDP; had it off before to save battery.
Home has also been recognized there and I have also been away from home 3 times, but I still have to wait 1h at home❗️😞