I can't speak to using "Latinx" or land acknowledgements, but myself and other non-cishet people I know appreciate the normalization of adding pronouns to names/bios by all kinds of people because it helps us feel a lot less othered. I hate being the only one in a Zoom call with my pronouns in my name.

That being said, I know cishet people more often than not do it to signal, but intentions aside, I think it's helpful and I only hope it becomes more common. I'd say about a quarter of my organization does it on Zoom, with almost all of us doing it on Mattermost. It's nice.