Lenovo IdeaPad 5 Pro 14ITL6 - Display Unusable

Hello,

That would be relevant on MX Linux forum, not here. Manjaro does not provide the

because is EOL = End Of Life = not supported.

There is a https://support.lenovo.com/us/en/downloads/ds549401-bios-update-for-windows-10-64-bit-ideapad-5-pro-14itl05

Download the ISO from https://manjaro.org/download/ install it, and then deal with issues one by one.
You might need to use i915.enable_psr=0 kernel boot parameter, test newer kernels, use a mouse till you manage to sort the touchpad …