To get maximum functionality out of your high-powered ARM device, sometimes it would be nice to be able to run applications developed for 32-bit Intel-based Linux devices (Box86), 64-bit Intel-based Linux devices (Box64), or even Intel-based Windows (Box86 or Box64 + Wine).
Also, a great selection of game emulators is included.
Although the following instructions are for Armbian, it should also work for Ubuntu with the install of the following package:
sudo apt install aptitude
Community member NicoD created a great tutorial on installing these programs for the purpose of running games on ARM. Once the applications are installed, they can be used for running other software as well.
Check out his how-to video at the bottom of the blog page at https://ameridroid.com/blogs/ameriblogs/running-box86-box64-on-the-rockpro64
sudo apt update && sudo apt install git git clone https://github.com/NicoD-SBC/armbian-gaming cd armbian-gaming sudo chmod 755 armbian-gaming.sh ./armbian-gaming.sh
Follow the prompts to install your choice of software.
box64 wine winecfg
If everything worked correctly, Wine should create its configuration file and prompt to install Mono and Gecko. Allow these to install.