1. That's still perfectly possible
2. We're talking about x86_64 CPUs here that have been open to install your own software basically since they existed
The minimum is now eight cores on a die for both AMD and Intel, so running a quad core system means staying on 14nm. You may loudly criticize holding back on a quad core system, but you aren't paying $47,500 per core to license Oracle Enterprise database.
The eight core minimum is a huge detriment for commercial software that is licensed by core.
This, and this alone, shatters your argument. Any other questions?
Here's also a recent Xeon quad core [1]
Beside that, could you please show me where the F-Droid build server uses an Oracle Database?
[0] https://www.amd.com/en/products/processors/server/epyc/4004-... [1] https://www.intel.de/content/www/de/de/products/sku/236193/i...
For any software licensed by core count, modern systems are usually at a disadvantage.
Next question please.