In my experience if the monolith has standards and is well-written then it's not so bad. I once had to work on a giant C# codebase with a frontend written in a

In my experience if the monolith has standards and is well-written then it's not so bad. I once had to work on a giant C# codebase with a frontend written in a wild mix of Angular, React (multiple versions) and Knockout and found it was pretty good because there was clear separation and code standards were very high.