I always thought those whoe said susa instead of soos are wrong.
Suse stands for “Software und System-Entwicklung” https://linuxiac.com/opensuse/
Edit: Yes, she can still be wrong but then it’s supported by the rest of susa’s staff https://youtu.be/RsME20zXbQI&t=13
Do they also pronounce the E? “Guh-no-meh?”
That depends but many people will be familiar with the absolute basics of English pronunciation and likely recognize the word as English too, I think.