Comment 6 for bug 1941955

$ dpkg-query -W wireless-regdb
wireless-regdb 2021.08.28-0ubuntu1~21.04.1
$ iw reg get
global
country 00: DFS-UNSET
 (2402 - 2472 @ 40), (6, 20), (N/A)
 (2457 - 2482 @ 20), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
 (2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
 (5170 - 5250 @ 80), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
 (5250 - 5330 @ 80), (6, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
 (5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
 (5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN
 (57240 - 63720 @ 2160), (N/A, 0), (N/A)

$ sudo iw reg set US
$ iw reg get
global
country US: DFS-FCC
 (2400 - 2472 @ 40), (N/A, 30), (N/A)
 (5150 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
 (5250 - 5350 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
 (5470 - 5730 @ 160), (N/A, 23), (0 ms), DFS
 (5730 - 5850 @ 80), (N/A, 30), (N/A), AUTO-BW
 (5850 - 5895 @ 40), (N/A, 27), (N/A), NO-OUTDOOR, AUTO-BW, PASSIVE-SCAN
 (57240 - 71000 @ 2160), (N/A, 40), (N/A)