Java exists today because of corporateware. Outside of it, it's dead. De-ad. No one uses Java seriously for emulators, browsers, or basic software. Just ad-hoc company-graded enterprise, live VB6 back in the day.
For starters, Java is by no means used just in "corporateware", if this means some intranet stuff. It's also hugely dominant in server side development (including FAANG) and is used by tons of startups, it's big in banking, high frequency trading, and all kinds of heavy service infrastructure.
That covers the huge majority of programming work, not writing "emulators and broswers" (sic), which is why it's in the top 5 of the TIOBE index.
"GUI libraries" have little to do with, not to mention they're generally irrelevant for most modern programming use cases, which is server/backend or web-based (and where they're not, they're already provided by the host OS and its preferred SDKs).
Also "Hyperbola GNU/Linux"? That yardstick of what's secure?
I know that if you were to work in any company, Java would ve everywhere, but today the times changes. Even the Crustacean lang it's preferable againt Java on big backends. On the ligther workloads, Golang works great and it solves the multiplatform issue by crosscompiling from anywhere to anywhere.
In any case, there's some serious lack of seriousness in the above. I mean, Java "not so performant against the new iterations of C# or even PHP >7"?
"Sooo many" compared to what? Did you scrutinize the equivalent of Java's SDK in Rust + extra crates to get the same functionality?
Do you include things like unrelated package bugs, like log4j bugs?