I think you're overestimating by a couple orders of magnitude what the average user is capable of composing as a search.
It's not like this is using any real technical terms that a common 21st century computer/phone user might not know, and the only real difficult one is probably "permissions" which you can probably either guess or eventually get to with synonyms; totally possible given it's a common English word.
Hell, I even checked, "permissions google" still has the account management link as the first one there. So even just knowing the word permission, which is a common English term to describe what you just gave the app, and the wording Google uses (see below) to refer to it, is enough to get to that page. You don't need to be a CS major to figure that out.
As I said above, Google even uses the terms when you do the signin: https://jaxenter.com/wp-content/uploads/2015/05/google-permi... and gives you direct instructions on how to manage them.
e.g. One might formulate searches like: "How to stop an app from downloading my emails?" "Take back permission from fleep"
Neither of which provide helpful results. Non-technical users could have a hard time differentiating between "gmail" and "email", or associating "Connect with gmail" with "permissions Google". (Or even "gmail" and "Google" - "Why would my email be related to search?")