The big TL;DR: SOC-2 is an "report" not a "certification". They don't tell you what you must do, they examine what you say you do, and then compare records to your policies to attest that you're a company who follows your own rules.
Design your controls the way that makes sense for your business, keep records, and then during the audit, make a case for why you are living up to your own standards. SOC-2 will ask questions that will make you think "oh we should do that" but it is perfectly acceptable to say that you don't do it, if it doesn't matter to your business or if you have other "controls" that meet the same standard.
Example:
- SOC-2: Do you force rotate passwords every 90 days?
- Us: No, based on NIST and Microsoft Research recommendations that say forced password rotations encourage users to choose simple variants on easy to remember passwords, we instead require 2 factor authentication and complex passwords which may be set indefinitely.
Doing some risk analysis can be a huge benefit, to help you