SteamOS does not set it, it defaults to global, which results in the lowest power settings which now makes me wonder if this is part of the problem people have been experiencing for years.
(deck@steamdeck conf.d)$ iw reg get
global
country 00: DFS-UNSET
(755 - 928 @ 2), (N/A, 20), (N/A), PASSIVE-SCAN
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 20), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (N/A, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
(deck@steamdeck conf.d)$ iw list | grep -A 15 Frequencies:
Frequencies:
* 2412.0 MHz [1] (20.0 dBm)
* 2417.0 MHz [2] (20.0 dBm)
* 2422.0 MHz [3] (20.0 dBm)
* 2427.0 MHz [4] (20.0 dBm)
* 2432.0 MHz [5] (20.0 dBm)
* 2437.0 MHz [6] (20.0 dBm)
* 2442.0 MHz [7] (20.0 dBm)
* 2447.0 MHz [8] (20.0 dBm)
* 2452.0 MHz [9] (20.0 dBm)
* 2457.0 MHz [10] (20.0 dBm)
* 2462.0 MHz [11] (20.0 dBm)
* 2467.0 MHz [12] (20.0 dBm) (no IR)
* 2472.0 MHz [13] (20.0 dBm) (no IR)
* 2484.0 MHz [14] (20.0 dBm) (no IR)
Band 2:
--
Frequencies:
* 5180.0 MHz [36] (20.0 dBm) (no IR)
* 5200.0 MHz [40] (20.0 dBm) (no IR)
* 5220.0 MHz [44] (20.0 dBm) (no IR)
* 5240.0 MHz [48] (20.0 dBm) (no IR)
* 5260.0 MHz [52] (20.0 dBm) (no IR, radar detection)
* 5280.0 MHz [56] (20.0 dBm) (no IR, radar detection)
* 5300.0 MHz [60] (20.0 dBm) (no IR, radar detection)
* 5320.0 MHz [64] (20.0 dBm) (no IR, radar detection)
* 5500.0 MHz [100] (20.0 dBm) (no IR, radar detection)
* 5520.0 MHz [104] (20.0 dBm) (no IR, radar detection)
* 5540.0 MHz [108] (20.0 dBm) (no IR, radar detection)
* 5560.0 MHz [112] (20.0 dBm) (no IR, radar detection)
* 5580.0 MHz [116] (20.0 dBm) (no IR, radar detection)
* 5600.0 MHz [120] (20.0 dBm) (no IR, radar detection)
* 5620.0 MHz [124] (20.0 dBm) (no IR, radar detection)
(deck@steamdeck conf.d)$ sudo iw reg set CA
[sudo] password for deck:
(deck@steamdeck conf.d)$ iw reg get
global
country CA: DFS-FCC
(2402 - 2472 @ 40), (N/A, 30), (N/A)
(5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
(5250 - 5350 @ 80), (N/A, 24), (0 ms), DFS, AUTO-BW
(5470 - 5600 @ 80), (N/A, 24), (0 ms), DFS
(5650 - 5730 @ 80), (N/A, 24), (0 ms), DFS
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(5925 - 7125 @ 320), (N/A, 12), (N/A), NO-OUTDOOR
(deck@steamdeck conf.d)$ iw list | grep -A 15 Frequencies:
Frequencies:
* 2412.0 MHz [1] (30.0 dBm)
* 2417.0 MHz [2] (30.0 dBm)
* 2422.0 MHz [3] (30.0 dBm)
* 2427.0 MHz [4] (30.0 dBm)
* 2432.0 MHz [5] (30.0 dBm)
* 2437.0 MHz [6] (30.0 dBm)
* 2442.0 MHz [7] (30.0 dBm)
* 2447.0 MHz [8] (30.0 dBm)
* 2452.0 MHz [9] (30.0 dBm)
* 2457.0 MHz [10] (30.0 dBm)
* 2462.0 MHz [11] (30.0 dBm)
* 2467.0 MHz [12] (disabled)
* 2472.0 MHz [13] (disabled)
* 2484.0 MHz [14] (disabled)
Band 2:
--
Frequencies:
* 5180.0 MHz [36] (23.0 dBm)
* 5200.0 MHz [40] (23.0 dBm)
* 5220.0 MHz [44] (23.0 dBm)
* 5240.0 MHz [48] (23.0 dBm)
* 5260.0 MHz [52] (24.0 dBm) (radar detection)
* 5280.0 MHz [56] (24.0 dBm) (radar detection)
* 5300.0 MHz [60] (24.0 dBm) (radar detection)
* 5320.0 MHz [64] (24.0 dBm) (radar detection)
* 5500.0 MHz [100] (24.0 dBm) (radar detection)
* 5520.0 MHz [104] (24.0 dBm) (radar detection)
* 5540.0 MHz [108] (24.0 dBm) (radar detection)
* 5560.0 MHz [112] (24.0 dBm) (radar detection)
* 5580.0 MHz [116] (24.0 dBm) (radar detection)
* 5600.0 MHz [120] (disabled)
* 5620.0 MHz [124] (disabled)
SteamOS does not set it, it defaults to global, which results in the lowest power settings which now makes me wonder if this is part of the problem people have been experiencing for years.
https://wiki.archlinux.org/title/Network_configuration/Wireless#Respecting_the_regulatory_domain