That is a very fair point, there are quite a few businesses and government agencies where I live, which are very deeply entrenched in very complex, decade spanning VBA based workflows that need absolute and fully compatibility before a switch away from "MS 365 Copilot" could even be considered and the name may give false expectations.

Now, I really, very much dislike it that often discussions on sites like this one can be utterly derailed by someone bringing up an utterly unrelated overhyped topic, so feel free to dismiss this, but I could honestly see LLMs providing a potential path to smoothing out such issues. Some model have gotten rather robust when it comes to making targeted changes to pre-existing Excel files dating back to before I was using a computer, including handling very specific modifications to ancient macros across multiple sheets. Perhaps, this could be leveraged to some extent, though being honest and trying not to overhype, I suspect that similar to those planning to use agentic coding to rewrite decades old, tested, crucially important COBOL code in a more modern language, there are likely many edge cases that will be hard to properly cover and if such a solution isn't both absolutely reliable and seamless to the users, large scale adoption by such entities will likely be impossible in the short term.