Comment by likium
So set up e2e tests and make sure it does things you said you wanted. Just like how you use a library or database. Trust, but verify. Only if it breaks do you have to peak under the covers.
Sadly people do not care about redundant and verbose code. If that was a concern, we wouldn't have 100+mb of apps, nor 5mb web app bundles. Multibillion b2b apps shipping a 10mb json file just for searching emojis and no one blinks an eye.
The effort to set up e2e tests can be more than just writing the thing. Especially for UI as computers just does not interpret things as humans do (spatial relation, overflow, low to no contrast between elements).