This is the ELLX for the Surface Laptop 7 X1 Elite. The following are packages that are built for Ubuntu 26.04 (and should work on debian!) which enable features for the Surface Laptop 7 including

* Wi-Fi
* Bluetooth
* Trackpad
* GPU

-- How to install
Install the latest kernel by downloading
* kernels/7.0.0-rc4-12/linux-headers-7.0.0-rc4%2B_7.0.0~rc4-g0e9944fa4cf2-44_arm64.deb
* kernels/7.0.0-rc4-12/linux-image-7.0.0-rc4%2B_7.0.0~rc4-g0e9944fa4cf2-44_arm64.deb
and installing them with "sudo apt install ./*.deb"
Source is available at https://github.com/ProgrammerIn-wonderland/ELLX-Kernel

Then install the firmware I have almost legally provided you at
* surface-laptop-7-firmware/microsoft-firmware.tar.xz
You can extract this at the root of your SSD with "sudo tar -xf microsoft-firmware.tar.xz -C /". This will effectively install all the firmware you need.

Lastly, install iptsd from iptsd/alex-lentz_iptsd/iptsd_3.1.0-1_arm64.deb and restart. You'll want to calibrate your trackpad with the instructions provided there
Source is available at https://github.com/alex-lentz/iptsd


BTW: I wouldn't remove your windows install! Sometimes the trackpad enters in a bad state and the only way to fix it seems to be rebooting into windows. There likely is some other way, but that seems to be the easiest way to reset the state back to "normal".