Invidious is currently broken due to Google changing things trying to stop 3rd party clients. But eventually Invidious will catch up and Google will give up for a bit.
Materialious doesn't use remote fonts by default, only as a backup if local font loading fails. For some reason ublock in hard mode makes local font fail loading & remote font is used.
Materialious contains zero trackers. Believe this was a issue with ublock falsely flagging local fonts as trackers or something, someone else open a issue on the repo with a similar issue. Feel free to review the source code for any trackers.
Material design 3 was released in 2021, so I'd call that somewhat modern and is the latest release of Material design. Unlike Apple's design language Material design is also meant for the web.
There is already a Invidious interface for Apple devices, but ofc isn't a web interface like Materialious.
Thanks for your interested. Currently this is just a alternative frontend for Invidious. But I am open to integrating other services into Materialious.
Invidious is currently broken due to Google changing things trying to stop 3rd party clients. But eventually Invidious will catch up and Google will give up for a bit.