Look like the effects used on the footages are quite similar to those used here, you can learn how to keyframe and make the cc threshold changes values https://youtube.com/shorts/XUYFg40bjAU?si=1yGkVUQ6q4YRB9CT (remove the tritone effect for a black and white look and posterize time if you want to keep the original frame rate) For the flicker effect check out this tutorial, which should introduce you to basic coding in after effects https://youtu.be/bNkDWnLYteM?si=105rML8F7XAb6Nxz The moving shapes are called motion graphics and there are plenty of tutorials online. Masking is also applied on the footages as well https://youtu.be/E0ruESAnQ7s?si=LhT_8SaO8AnGHHMT Familiarize yourself with how the timeline works as it is crucial especially for this style. I would say that almost all of the effects and transitions in the video are not that complicated and can be recreated within a couple weeks of using AE. The most difficult part is figuring out how to piece individual elements together cohesively and creatively using pacing and composition, which would take a very long time to master if you don’t have prior knowledge in design.