Update process - How is it done ?

[mdedonno1337]

Let assume I'd like to update from the current version to the next one (for example from 90.0.4430.85 to 90.0.4430.93), how would I proced ?

My first instinct would be to git clone the official chromium repository, checkout the current version, and traverse the git log, one commit at the time to check the committed code, until I got to the new version.
At the same time, I would check the changelog page: I've juste found the changelog page: https://chromium.googlesource.com/chromium/src/+log/90.0.4430.85..90.0.4430.93?pretty=fuller&n=10000

On the way, I would create the mendatory patch files to remove problematic features and test/updat the patches as described in the doc.
Once ready, make a PR.

Am I missing something ?

Thanks!

Edit:
I'm not talking about the process as described in the doc, but the discovery of a new problematic feature that we would like to remove.