You are right. G-Droid is more than just a 'skin' . The comment feature is only one difference. Here is a long list of differences here in the G-Droid website: https://gitlab.com/gdroid/gdroidclient/blob/master/README.md
(Which is btw in the F-Droid client not shown as website, since they claim it is not a website 😂 )
@bjoern I would really love to know answer for this as well.
@gdroid why in your GitLab README https://gitlab.com/gdroid/gdroidclient/blob/master/README.md you state that “G-Droid is actively maintained (the @fdroidorg client is not any more)”?
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!