roamer4223 This is a complicated topic!
- Somewhere inside GrapheneOS there is a giant table mapping from regulatory regions to channels and power limits. Perhaps somebody will post a link to the file.
- That file may be correct or incorrect, in part because countries change rules all the time.
- Likewise somewhere inside a home router there is a giant table. Likewise that table may be correct or incorrect.
So it is possible for one's router and one's phone to disagree. I can imagine that Google tries to be pretty up-to-date, and I suspect the GrapheneOS developers are quickly tracking what Google puts in AOSP. Meanwhile, people often don't update router firmware, and sometimes companies are not in a rush to update firmware for older devices.
Here is a Wikipedia page on Wi-Fi channel allocations. But that might contain inaccuracies too!
If anyone is aware of a specific inaccuracy in Wikipedia or in the AOSP Wi-Fi regulatory database, it probably makes sense to point that out in the appropriate venue.
But that's aside from the issue of whether an end user seeking privacy would/wouldn't want to transmit in a frequency band that is outside of local regulatory constraints. I would think a privacy-seeking user might prefer to blend in, as opposed to standing out.