Getting MacBook Pro M4Pro 12/16 or 14/20 both with 48gb / 1 Tb?

In the rang of the m4 pro I don't have a budget. I believe the M4 Max is to much for my use. These are my needs:

  1. AI / Photoshop (Medium to large file file size)

  2. Mostly attached to a only 2k monitor

  3. The machine needs to works at its best for at least 5 years.

  4. I the near future I want to experimenting with 4k video editing.

  5. 14 inch display ad the bigger one too heavy

What machine with what specs you;d reccomend to buy? I had in mind the two with the specs mentiuoned in the title but if you think is too much or isn't enough I am all ears. Please help me to decide!

Ps. if I'll go with the more powerful cpu/gpu's the battery will drain noticeable faster?

Tks!