When someone says they're a libertarian socialist they're not stating an oxymoron (as is often said on here). 135 years ago E. Lesigne laid out the difference between anarchist vs state socialism & it prob still stands as one of the best analysis to date.
https://www.libertarian-labyrinth.org/anarchism/ernest-lesigne-on-the-two-socialisms/
The above was translated from the original by pro-freemarket individualist anarchist and libertarian socialist Benjamin Tucker in his essay State Socialism and Anarchism.
https://www.panarchy.org/tucker/state.socialism.html