@Tomi marks the movie once watched, or it is possible to manually mark, but it can not synch over multiple devices. But I do not care about marking them, I am glad, that it plays DolbyVision without an issue :) I use this for multiple years already and no issues at all.
I flashed back to Android TV 12 for now, it was not watchable at all on WiFi, everything freezes and lags…
On Android TV 12, every ethernet adapter worked well from these – what I have – each of these chips are OK on ATV12:
AXAGON ADE-TXCA – AX88179A
AXAGON ADE-25R – RTL8156B
AXAGON ADE-SR – RTL8153 – this work well for multiple years, until this ATV14
Interlook S3J-8153 – RTL8153
I am very sad about the ATV14 and I hope that it is just a bug and not a removal of an official Google Android TV feature by Philips as support said… until now, I was very satisfied with Philips TVs, had more pieces over the last 10 years… but if this is, so they lost me at all.