"Subscribe to logs from the device": WHERE are the logs?

For a device I haven’t adopted (but is configured with the logger), I can’t display the log from the Add-on GUI. But there is this option available in the integration:

…where the Hell is that logs panel??

Home Assistant Settings → System → Logs

Top right button to select your ESPHome device logs.

Not at all sure what you mean by this though:

In the top-right menu, I don’t have any device. I can see the logs of the Add-ons (among which ESPHome Device Builder) but no device log.

If you adopt an ESPHome device, you can check the logs in real time from the ESPHome Device Builder dashboard:

Sure but in no way is that related to what you said.

I’ve never used this feature so I just tried it. The device logs appear in the home assistant core log:

Log level appears to be set to WARNING. So you wont see the full INFO logs like in the add-on.

I don’t know how you can say that.

Thanks, that’s why I couldn’t see it, I had no warning

Can this be changed to INFO when debugging some long running issue?

For anyone else who ends up here wanting to capture ESPHome logs above the WARNING level, the only switch I've found to enable this is to enable debug logging on the ESPHome integration. I think that will log everything up to "very verbose", but note you may also need to reconfigure your devices to emit logs with higher verbosity if you want to see VV logs.

You can set logging level to whatever you want, not just debug.

From the integration docs:

All possible log levels linked in the above docs Logger - Home Assistant