sudo spctl --master-disable

: If you have an M1, M2, or M3 chip , the 2018 version may not run natively or may require Rosetta 2, often leading to performance lag. Which macOS version are you currently running?

Adobe Illustrator CC 2018 for Mac is generally regarded as a solid, incremental update that focused on streamlining workflow through new tools like the Puppet Warp and an intuitive Properties Panel