DrantaRAT Android Open Source Project doesn't support some of the features that you're referring to, so they're not available on GrapheneOS. Other features come from apps, but Google apps are usually installed as privileged apps on other OSes (like the stock OS), so they expect/require special permissions to work, which they cannot get on GrapheneOS.
So, some features work if you install the correct apps and grant them certain permissions. Other features just don't work.
DrantaRAT Another question I had for a long time is if it’s possible to copy text from the photos on a default app? I suppose I need Google Photos for this functionality.
Yes, this sounds like something Google Photos would support, but I haven't personally tried it.