Maybe an unpopular opinion, but I consider wordpress open core at best these days.
A lot of really basic features like lightboxes that should be in core are in their "jetpack" SaaS plugin. This by default sends automattic a whole bunch of telemetry, which I assume they are now selling to OpenAI, and puts ads in your dashboard for other commercial SaaS features.
There's also the fact that they don't allow forks of open source plugins in their plugin repository.