“Libertarian socialism” is quite a bit broader than “ancom” and there are plenty of anarcho-individualists that out of individualist considerations consider themselves socialists.

Lets take piracy as an example:

An ancom would likely argue that this is bad under the current circumstances and that the creators should be fairly compensated or rather have their needs covered so that they are free to make stuff. However they would likely also concede that piracy from large corporations would be somewhat ok as large privately owned corporations are a bad thing and thus don’t deserve any protection.

An anarcho-individualist would be likely in favour of piracy even under the current circumstances as it usually benefits the person pirating much more than it hurts the people working on the digital media, but maybe concede that you shouldn’t do it for small individual creators trying to make a living.

So you see that the final outcome isn’t that different, but an ancom would likely shy away from openly promoting piracy of digital media.