I don't see what ActivityPub would add to a Linktree alternative, it's a static page of links that doesn't need to talk to anything.

There's LinkStack, which is like a FOSS Linktree and has various instances you can sign up for.

There is too much obsessions about making everything fediverse compatible even when it doesn't make any sense

Linktree is just a static site with a list of links. You could do the exact same thing using Hugo as a site builder and GitHub Pages for free hosting. All it would cost you is a custom domain name if you wanted one. Not sure activitypub brings anything useful to the table here.

I just made a free static site on neocities for my links. omg.lol looks like a cool option as well (open source but not free tho)

Neither of these are fedi/activity pub but they're not so bloated/none of the tracking and privacy issues that linktr.ee has

This need could probably be filled pretty well with something like neocities :)

Honestly, it would be kind of cool if you just had a simple app to log in with your Fediverse identity, and it rendered your existing profile on the page and allowed you to put additional links.

I don't think it necessarily needs to federate.

How could this be fediverse compatible??? If you do not like linktree, just use a static html page

Not fediverse exactly but nostr has nostree

I run a linkstack instance but it's not federated as such - and as said I cannot see the real advantage of doing so as they are just a page(s) of links. However linkstack can be pretty, is easy to maintain a list and runs as a docker container...

https://linkstack.relayeasy.com/@3dcadmin