Forget what I said above about KDE. I see that the main problem with it was missing Autostart script.
The kdeconnectd wasn't starting in the background even after restarts.

KDE Connect Autostart script was missing at /etc/xdg/autostart/kdeconnectd.desktop in Fresh Install of Kali Linux.

[Desktop Entry]
Type=Application
Exec=/usr/lib/x86_64-linux-gnu/libexec/kdeconnectd
X-KDE-StartupNotify=false
X-KDE-autostart-phase=0
X-GNOME-Autostart-enabled=false
OnlyShowIn=KDE;GNOME;Unity;XFCE;
NoDisplay=true

IDK if it's a install bug in Kali or not as in Ubuntu if we install or reinstall KdeConnect package, it automatically starts the service
But that doesn't happen in Kali linux.

I had also an issue using KDEconnect, and I found the cause.

Do this in order to make it work:
mv /usr/share/dbus-1/services/org.kde.kdeconnect.service{.original,}

it seems that kali-defaults install a commented file of the KDEconnect D-bus service, and rename the original file extracted by KDEconnect to *.original
That's why it doesn't work, because kdeconnectd can't be started

KDEConnect is not started by default on Kali, and that's on purpose. It was disabled about two years ago, in commit https://gitlab.com/kalilinux/packages/kali-defaults/-/commit/67997942d2e8bfcbf1e05c7229ea41ce8e944b5b

The commit message says it all:

<pre>
Disable kdeconnectd automatic startup in user sessions

This daemon listens on public interfaces (tcp/udp port 1716) and we
don't want any public service enabled by default.
</pre>

See also: https://www.kali.org/docs/introduction/should-i-use-kali-linux/#whats-different-about-kali-linux

Regarding the missing firmware ark3k: do you have logs, or something a bit more precise? Is it really ark3k or ar3k?

Okay thank you for mentioning about KDE.

It's ar3k not ark3k

I can't really give the logs now sadly, but it was firmware failed to load in red Text for Bluetooth when I checked,

It's just that firmware. Quite old but still why not have 200kb

I attached the firmware folder I downloaded from kali firmware repository

From what I can see, those files are included in the package firmware-atheros:

<pre>
$ apt-file search ar3k
firmware-atheros: /lib/firmware/ar3k/AthrBT_0x01020001.dfu
firmware-atheros: /lib/firmware/ar3k/AthrBT_0x01020200.dfu
firmware-atheros: /lib/firmware/ar3k/AthrBT_0x01020201.dfu
firmware-atheros: /lib/firmware/ar3k/AthrBT_0x11020000.dfu
firmware-atheros: /lib/firmware/ar3k/AthrBT_0x11020100.dfu
firmware-atheros: /lib/firmware/ar3k/AthrBT_0x31010000.dfu
firmware-atheros: /lib/firmware/ar3k/AthrBT_0x31010100.dfu
firmware-atheros: /lib/firmware/ar3k/AthrBT_0x41020000.dfu
firmware-atheros: /lib/firmware/ar3k/ramps_0x01020001_26.dfu
firmware-atheros: /lib/firmware/ar3k/ramps_0x01020200_26.dfu
firmware-atheros: /lib/firmware/ar3k/ramps_0x01020200_40.dfu
firmware-atheros: /lib/firmware/ar3k/ramps_0x01020201_26.dfu
firmware-atheros: /lib/firmware/ar3k/ramps_0x01020201_40.dfu
firmware-atheros: /lib/firmware/ar3k/ramps_0x11020000_40.dfu
firmware-atheros: /lib/firmware/ar3k/ramps_0x11020100_40.dfu
firmware-atheros: /lib/firmware/ar3k/ramps_0x31010000_40.dfu
firmware-atheros: /lib/firmware/ar3k/ramps_0x31010100_40.dfu
firmware-atheros: /lib/firmware/ar3k/ramps_0x41020000_40.dfu
</pre>

Can you check if this package is installed? Also, where did you see the error messages, was it during the Kali installer (which version, 2022.4 or weekly?), or in the journal logs?

I use this image kali-linux-2022.4-installer-amd64.iso which isn't a weekly.
I saw this the error missing firmware log when diagnosing the bluethooth service in it's journal because bluetooth wasn't working out of the box in fresh install.

It happens on fresh install, and no errors during setup or installation of the Kali os.

During the setup, I usually don't install the tools that come with it.
I do a tool-less install with xfce and plasma kde.

After booting on a fresh install,
the bluetooth never starts and checking the logs suggest me missing firmware.

So everytime I have to install that firmware just for this chipset Atheros.

Also the bluetooth service doesn't start even though its tick inside the system setting -> autostart -> bluetooth.

I don't the process I went through to make my bluetooth work, usually I went through some stackoverflow thread from which I ran the commands.

anyways the bluetooth chipset is :

idVendor 0x0cf3 Qualcomm Atheros Communications
idProduct 0x3004 AR3012 Bluetooth 4.0

I found out that firmware are not installed by default if you don't install tools. It looks like a bug. I will discuss that with the team to see how we can improve that.

I found out that firmware are not installed by default if you don't install tools. It looks like a bug. I will discuss that with the team to see how we can improve that.

So this is fixed in version 2023.1, if you install Kali without tools, firmware will still be installed, so bluetooth should work