Exactly. My team's technical documentation is written (in English) by people who don't speak English natively, and it's awful, barely comprehensible many times

Exactly. My team's technical documentation is written (in English) by people who don't speak English natively, and it's awful, barely comprehensible many times because these people don't understand articles ("the" and "a") very well and constantly omit them or use the wrong ones. And aside from the poor English, the documentation itself is just bad. AI would do a great job of fixing their writing, but they don't want to use it, because it's not an official part of "the process". >and comments scattered in the developers' code base I'm not so sure about this one. Most devs I've worked with don't use comments.