The following are the required packages for H21:

RHEL/Rocky/Alma/Fedora: 
alsa-lib cups-libs dbus-libs expat fontconfig glib2 glibc libcurl libcurl-minimal libdrm libgcc libglvnd-egl libglvnd-glx libglvnd-opengl libICE libSM libstdc++ libuuid libX11 libX11-xcb libxcb libXcomposite libXdamage libXext libXfixes libXi libxkbcommon libxkbcommon-x11 libxkbfile libXrandr libXrender libxshmfence libXt libXtst mesa-libGLU ncurses-libs nspr nss nss-util nxagent pciutils-libs xcb-util-cursor xcb-util-image xcb-util-keysyms xcb-util-renderutil xcb-util-wm 

Debian/Ubuntu/Mint/Pop!_OS: 
libasound2 libc6 libcups2 libcurl4 libdbus-1-3 libdrm2 libegl1 libexpat1 libfontconfig1 libgcc-s1 libgl1 libglib2.0-0 libglu1-mesa libglx0 libice6 libncursesw6 libnspr4 libnss3 libopengl0 libpci3 libsm6 libxcb-cursor0