Is there a list of who some GMs are who play anonymously?

At ICC for instance there were lists in which the real names were lsited of some of the GMs who played there anonymously. Is there a similar list for lichess pls?

I am not affiliated with Lichess but I am pretty sure that no. Lichess would never do this. If someone felt the need to play anonymously, lichess would respect it. Even if by publishing the list you are asking for it doesn't give away which account belongs to whom that's not the only information that someone may want to protect. Just having used lichess may be an information that some wouldn't want to be given away. For example someone may be affiliated to a different chess website and be contractually or just morally expected to play only on that website. It would be very unprofessional and really disappointing if Lichess actually gave away their names. Then these people would have to stay away. A loss both for Lichess and for them.

Also we really don't need to be so intrusive. You really don't need the information that you are asking for. And instead of asking for it you should criticise Lichess if they actually provided such a list.

Edit: Reading again your post I realise that you don't really ask for Lichess to provide one but in general. So I was a bit out of topic. Still I think that there is no reason to seek to for such information and you should respect each players' wish to play anonymously but afterall it's up to one's morals.

Maybe Staff and developers of chess.com

Somehow such a list contradicts with the concept of "anonymous", doesn't it?

Actually there is in practice a lot more flexibility in the use of anonymity; people choose their monnikers to signal something about themself (usually of a humorous nature) rather than bc of a desperate desire to keep their identity secret. e.g. DrNykterstein at lichess.
My point is demonstrated by the actually existing practice: the clearest example I know of is at ICC - comparable with lichess - where the many titled players who played there 'in disguise' were very happy that people knew who they were.
It was merely a convention going back to the early 1990s that GMs /IMs etc would take a name other than their own. Tim Krabbe (at the sometimes brilliant timkr.home.xs4all.nl site) has written about the genesis of such customs.
In fact the vast majority of the hundreds of titled members using 'funny' handles had no objections to other ICC members knowing their real name. On the other hand, ppl respected the privacy of those who genuinely wanted to play there without others knowing who they were. Not very many. After all, in circles of titles players they mostly all know each other anyway don't they!

We could always start a thread of known GMs and their corresponding lichess account. Those that don't care for anonimity usually have their real name in their profile. But that is still a lot of GM accounts to sift through.

Other than the obvious ones, the only ones I currently follow are:

Peter Svidler - @Moose959
Vladislav Artemiev - @Konevlad
Fabiano Caruana - @Bombegranate