I use Adobe InDesign, Illustrator, Photoshop, Acrobat and am learning After Effects. I recently purchased the Mac Studio base model with upgrades to 64GB RAM and 2 TB storage. This replaces my 2019 MacBook Pro 16" Core i9 with 32GB RAM.
I would recommend getting the base model Studio. All the available processor upgrades will add minimal improvements at great expense for the type of work you're doing on it.
I would recommend you upgrade the RAM to 64GB. I have a 32GB M1Max computer at the office for comparison and the difference is noticeable when working with large Illustrator and Photoshop files - and I suspect the same will be true for After Effects, Premiere and any programming apps you use.
Let me be clear, 32GB of RAM is perfectly useable for what you need, but 64GB makes it even better. And remember, RAM is one thing you can't add externally later on. It's worth it to have more than you need now.
I would NOT recommend you get more storage than 1TB. I got a 2TB storage drive because I absolutely hate adding more cable clutter in my home office. It's literally worth the expense (for me) to not see or have to deal with more external devices. BUT, as others mention, you CAN add more storage any time you want, so there's little benefit to paying much more for internal storage.
That being said, I would get 1TB because the amount of space the OS itself and apps you install seems to increase every year. 512GB is awfully lean, in my opinion - but your mileage may vary.