>Finally for LSP, I always recommend Eglot over LSP Mode, as Eglot is written by an Emacs contributor that has deep knowledge of Emacs and Emacs Lisp. LSP Mode is written by volunteers on Github, and the code is nowhere near as good.

This isn't really true at all, but even if it was, lsp-mode has a larger scope and has many more features than eglot. It's also much more actively maintained/developed than eglot is.

Anyways, most FOSS code is written by volunteers. I really don't think that's a great argument against a FOSS project.

Also see:

https://github.com/emacs-lsp/lsp-mode/graphs/contributors

https://github.com/emacs-lsp/lsp-mode/pulse/monthly

https://github.com/joaotavora/eglot/pulse/monthly