Earlier quoted context omitted.
Fair. Maybe I should've worded this differently. While their philosophies and practices are to a large extent overlapping, of the two movements, Open Source is primarily focused on programmer benefits. while Free Software is focused on end-user benefits. FSF is not the movement around end-user benefit, but it's definitely the most known, most visible and most organized - and that does count for something.
I don’t really understand how that is so. The main FSF Libre software benefits they tout ‘for users’ are only actually accessible by developers. Specifically freedoms 1 and 3, to study and modify and improve the code and share those improvements. The other two freedoms, to run it for any purpose and redistribute it aren’t in any way unique to Libre software. They’re important sure, but are really just free beer benef…
Second aspect: while freedoms 1 and 3 are developer-specific, they assume and secure an open marketplace. They're about the same thing that "Right to Repair" movement fights for in the hardware space - the ability for me, as a lay user, to ask a professional friend/neighbour, or a local shop, to pretty please fix/modify my software/hardware. The ability for that friend/local professional to perform that work legally. Where Open Source only allows this to happen, FSF-style Free Software tries to force it to happen, by legally ensuring the benefits I ordered and someone made for me could be used by the entire community.
It's a hard sell for businesses earning money by making software, but from the user's perspective it's important on a longer-term - particularly if said user believes in competitive markets, as competition in a market doesn't really work unless it happens over a commodity.