Now where ArcGIS enterprise succeeds is being in an actual enterprise (thousands of users), having groups collaborate, data control, and more. None of the enterprise-y bits exist.
And QGis is more akin to ArcGIS Pro, not Enterprise.
Now, yes, it is definitely resource hungry. And also, if you administer it, HA isn't really HA. Theres tons of footguns in how they implement HA that makes it a SPOF.
Also, for relevancy, I was the one who worked with one of their engineers and showed that WebAdapters (iis reverse proxy for AGE) could be installed multiply on the same machine, using SNI. 11.2 was the first to include my contribution to that.
Edit: gotta love the -1s. What do you all want? Screenshots of my account on my.esri.com? Pictures of Portal and the Linux console they're running on? The fact its 80% Apache Tomcat and Java, with the rest Python3? Or how about the 300 ish npm modules, 80 of which on the last security scan I did showed compromise?
Everything I said was completely true. This is what I'm paid to run. Can't say who, cause we can't edit posts after 1 or so hours.
I would LOVE to push FLOSS everywhere. QGIS would mostly replace ArcGIS Pro, with exception of things like Experience Builder and other weird vertical tools. But yeah. I know this industry. Even met Jack a few times.