Hey, sorry mate, but unfortunately GDevelop engine doesn't support 32 bit
What, you don't know anything about the engine developer? Why should engine developers optimize their software for new hardware? To make idiots buy a new computer?
You can't mean newer operating systems by "newer systems". Because some important Linux distributors offer 32 bit Linux systems, for example Salix (Slackware), Mageia (Mandriva), Puppy Linux. I just loaded MX-Linux 23 in the 32 bit version. It's only been available for a few hours.