Hi,
You shouldn't face any problems. In section 6.3, the commands are for installing the required packages for your Ubuntu and python libraries which should work without problem :
First command :
sudo apt-get install build-essential clang lld gdb bison flex perl \
python3 python3-pip qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools \
libqt5opengl5-dev libxml2-dev zlib1g-dev doxygen graphviz \
libwebkit2gtk-4.0-37 xdg-utils
then :
python3 -m pip install --user --upgrade numpy pandas matplotlib scipy \
seaborn posix_ipc
you may skip libosgearth part because Ubuntu 22.04 no longer provides the libosgearth package so osgEarth must be installed from sources.
if you face any error, post the error so we can help you