I heard recently that MyST [1] now has full feature parity with everything that reST provides. If I were starting a new project today I would seriously look into Markdown-based Sphinx site powered through MyST. For Pigweed we collectively don't seem to hate reST enough to justify the huge project of migrating everything over from reST to Markdown.

So yeah, I don't really have strong opinions on sticking with rest per so. I only have strong opinions about Sphinx being probably the best choice out there for large docs sites.

[1] https://myst-parser.readthedocs.io/en/latest/