@Paolo,
Enable Pre-released updates (eoan-proposed) in the Software & Updates sudo apt-get update sudo apt install linux-image-unsigned-5.3.0-4 {pressing tab}, it will list -43 kernel.
@Paolo,
Enable Pre-released updates (eoan-proposed) in the Software & Updates unsigned- 5.3.0-4 {pressing tab}, it will list -43 kernel.
sudo apt-get update
sudo apt install linux-image-