You can find official files for this version on reputable open-source repositories:
GNS3 (Graphical Network Simulator-3) version 2.2.33.1 is a stable, free, and open-source tool that allows network professionals and students to build and test virtual networks without the cost of physical hardware. This specific release, originally launched in June 2022, provides critical stability for users preparing for certifications like CCNA or CCNP. Where to Download GNS3 2.2.33.1 download gns3 2.2.33.1
: Users typically install via PPA for Ubuntu/Debian or through PyPi for other distributions. You can find official files for this version
This release is part of the 2.2 stable branch and includes several refinements: Releases · GNS3/gns3-gui - GitHub originally launched in June 2022