Headers trouble on Raspberry Pi model 4

[foamiepanels]

Hello-
I am trying to install (8821au) on a Raspberry Pi 4 model B, and when I run:

xsudo apt install -y raspberrypi-kernel-headers build-essential bc dkms git

I get an error:
E: Unable to locate package linux-headers-6.1.21-v8
E: Couldn't find any package by glob 'linux-headers-6.1.21-v8'

Curious if there is a solution for my issue? Thanks in advance!

[foamiepanels]

In case this is useful: 6.1.21-v8+ aarch64
bash: mokutil: command not found
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
phy#0
Unnamed/non-netdev interface
wdev 0x2
addr e6:5f:01:1e:ac:b4
type P2P-device
txpower 31.00 dBm
Interface wlan0
ifindex 3
wdev 0x1
addr e4:5f:01:1e:ac:b4
ssid XXXXX
type managed
channel 4 (2427 MHz), width: 20 MHz, center1: 2427 MHz
txpower 31.00 dBm
global
country GB: DFS-ETSI
(2400 - 2483 @ 40), (N/A, 20), (N/A)
(5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
(5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
(5470 - 5730 @ 160), (N/A, 26), (0 ms), DFS
(5725 - 5850 @ 80), (N/A, 23), (N/A), NO-OUTDOOR
(57000 - 71000 @ 2160), (N/A, 40), (N/A)

phy#0
country 99: DFS-UNSET
(2402 - 2482 @ 40), (6, 20), (N/A)
(2474 - 2494 @ 20), (6, 20), (N/A)
(5140 - 5360 @ 160), (6, 20), (N/A)
(5460 - 5860 @ 160), (6, 20), (N/A)

[morrownr]

Hi @foamiepanels

This problem seems to be with 32 bit version of RasPiOS. I use the 64 bit version and have not seen it. The RasPiOS devs messing up kernel headers is not a new thing. Keep in mind that this is not a problem with this driver.

See: morrownr/88x2bu-20210702#154