Took a little while but got Qubes 4.1 running on Dell Precision 7560 (also known as ‘la grosse bertha’).
For the OS to be able to boot :
- Need to change in BIOS to AHCDI (F12 → BIOS → Storage → Disable RAID and switch to AHCI ) as in ([qubes-users] Dell Precision 5750)
Install the OS. I used debian 11 as default
In order to get sys-net working :
After the first boot, go to sys-net settings (VM must be powered off) and configure strict reset for PCI for the ethernet controller. (sys-net settings → Devices → Configure strict reset for PCI devices → chose ethernel controller)
Shutdown the VM
In order to get the wifi working :
The kernel version was causing problem with the AX210 wifi controller of the laptop
Start debian 11 template.
sudo mv /lib/firmware/iwl-wifi-ty-a0-gf-a0.pvnm /lib/firmware/old.bak
Shutdown template.
My default kernel for sys-net was : 5.15.52 (or 5.15.84, unsure ).
So i went to
https://ftp.qubes-os.org/repo/yum/r4.1/current-testing/dom0/fc32/rpm/
and Downloaded the following in a VM
I went to dom0 :
Qvm-run -p personnel ‘cat home/downloads/kernel-5.110.112-1.fc32.qubes.x86_64.rpm’ > kernel-5.10.112-1.fc32.qubes.x86_64.rpm
Do the same for the 3 downloaded files.
Install them one by one with :
sudo dnf instal kernel-XXXX.rpm
Go to sys-net settings, change to the new kernel (Sys-net settings → Advanced → Kernel 5.10.112).
Reboot and get wifi 
PS : I tried with kernel 5.10.104 for sys-net, the wifi was working but there were a problem with a current pop up that was appearing in my top right screen saying : device available and device unavailable. Changing to kernel 5.10.112 fixed it
I did NOT try all the kernel between the one I had by default and the 5.10.101. I tried updating to latest kernel but wifi did not work
I also add a small issue with my USB keyboard :
Open /etc/qubes-rpc/policy/qubes.InputKeyboard & Add at the top of the file : sys-usb dom0 allow
Qubes-HCL-Dell_Inc_-Precision_7560-20230216-055110.yml (952 Bytes)