Good progress this month! Good to see it running on Windows now, even if I don't use Windows myself anymore. That'll help boost adoption once it releases.
This is because of the lack of Widevine CDM, and the majority of people wanting to stream stuff using services like Tidal, Netflix and Spotify.
They will also want to use a single browser for everything, which in practice means Edge, Chrome, Firefox or Safari.
Ladybird will very likely not have access to Widevine, because of the cost, requirements, and Google as gatekeeper. Some developers of small opensource Chromium/Electron based browsers also earlier tried and Google simply said no.
And even if they have reverse engineered the CDM extension (which will make Widevine work, not unlike a small hack/workaround with regard to Chromium and Chromium forks) it will not work because all browsers using Widevine on those two platforms require something called VMP (Verified Media Path) which is, as far as I understand, a certificate and verification library supplied by Widevine embedded within the browser.
Without VMP embedded in the browser streaming from popular commercial providers such as Netflix will not work on Windows and MacOS, even when the Widevine extension is in fact active.
Believe me, I checked.
IMO all of this is not only set in motion to (try to) protect from piracy, but also to kill any serious competition from small parties like LadyBird, and to keep the browser market firmly in the hands of the likes of Microsoft, Apple and Google. Because who will use a browser in 2025 unable to stream content, or without hacks at 720p maximum? (looking at you, Brave and Netflix)
This also means that browsers like Brave, Vivaldi and Firefox are in fact not true opensource browsers because their respective public repositories do not contain the assets needed for VMP signing.
On another note, at this moment the majority of people should be glad that browsers with corporate backing and enough income like Brave (whatever you might think of Brendan Eich's ideas), Vivaldi and Firefox exist because without them you would have no serious choice on Windows or MacOS at all.