Been using 128gb since 2013-14 and filled with Photoshop, illustrator, premiere pro, office and many more. Still enough to keep all the files in the main ssd. Although I move some files to other drives because those drives sync with my cloud storage.

Also only until recently, I had to move my overwatch game because needed the extra space. And I installed my overwatch on my SSD pretty much around the time it was released.

So don't worry about the storage. For normal files it's more than enough. Although do invest in a hdd for bigger files like music and videos just in case