Whether in the browser or an app, your next task is to find the entry that controls the SSID. This may be labeled SSID, Network Name, or something similar. Once you’ve found it, simply add “_nomap” to the existing name. If the name gives away your location, consider changing it ...
It’s a good idea to do a “trial outage” to find a good spot before you need one. Pack a “bug-out” bag of cables, batteries, chargers, and a sweater (for overenthusiastic AC) and check out the local options. Libraries, coffee shops, and restaurants are all candidates, but not...