Microsoft (famously developing somewhat popular office-like software) seems to be going in the direction of almost forcing developers to use LLMs to assist with coding, at least going by what people are willing to admit publicly and seeing some GitHub activity.
Google (made a small browser or something) also develops their own models, I don't think it's far fetched to imagine there is at least one developer on the Chrome/Chromium team that is trying to dogfood that stuff.
As for Autodesk, I have no idea what they're up to, but corporate IT seems hellbent on killing themselves, not sure Autodesk would do anything differently so they're probably also trying to jam LLMs down their employees throats.
Microsoft is also selling "AI", so they want headlines like "30% of our code is written by AI". So they force open source developers to babysit the tools and suffer.
It's also an advertisement for potential "AI" military applications that they undoubtedly propose after the HoloLens failure:
Lets not change the goalpost, parent asked for any examples of software written with LLMs, and regardless if the output is quality or not, that is one example. Besides, Microsoft isn't really known for their high code quality, so I'm not even sure using even dumb LLMs/tools like Copilot would actually have a negative effect.