Can't open After Effects 2022

Try downloading the actual "Creative Cloud Desktop" and open everything from there. Sounds silly, but i'm on PC and was having the same issue and this seemed to fix it. Wish you the best of luck. I'm am extremely new to this editing thing, and am looking forward to learning. I am a small time streamer on Twitch and am looking to edit small clips and utilize other media outlets such as YouTube, TikTok etc. to grow my audience. Much love and respect to everyone on here, and I look forward to creating and expressing with all of you amazing people. God Bless!

Hola lo que pasa es que cada version de software necesita mas rendimiento de maquina en tu caso con OS Catalina, esta a limite. y tu maquina es bastante antigua. Es muy probable que si instalas una version mas moderna de OSX te deje trabajar, aunque no te lo recomiendo poruqe tu imac se pondra mas lenta.
Saludos

Maybe try going into AE 2021 and cleaning media and disk cache. By going to the top of the interface/after effects/Media and disk cache and choose the options for that.

Then close 2021 and re-set preferences. Hold down shift/command/option while double clicking on the app icon. Continue to hold the keys and answer yes to any changes.

Sorry that you're going through this and I hope that my suggestions help.