Downloading has become more difficult recently because Adobe's official policy is to only support the current version and one major version prior. Consequently, older versions like 2019 are typically removed from the Creative Cloud desktop app once they fall out of this window. How to Access Illustrator 2019 v23
While version 23 is no longer a standard download, you may still find it through these methods: Download Illustrator 2019 v23 x86 zip
Illustrator CC 2019 (v23) generally requires 64-bit Windows 10 or Windows 7 SP1. Note that modern versions of Creative Cloud apps have transitioned away from x86 (32-bit) support, so you should verify your hardware compatibility before installing. Feature Highlights of Illustrator 2019 (v23) Download Illustrator 2019 v23 x86 zip
