As a secondary activity, they support some related freedom-increasing topics (Right to Repair).
If I look at outcomes, as measured by the adoption of open-source software, it’s hard for me to judge FSF as ineffective. If you want to argue that all of that adoption was incidental or accidental, entirely unrelated to the FSF, you’re welcome to advance that argument, but it will require more evidence than “I thought it was pretty clear”
And why does the free software movement need a legislative agenda? I've never seen legislation concerning software that wasn't horribly flawed. Legislation is the product of lobbying and the ignorance of legislators. If the FSF promoted a "legislative agenda", then I for one would have much diminished confidence in it.
The fsfe now also officially cut their ties to FSF because of RMS' reapportionment.
That's a good reason to have a legislative agenda. Laws will be written, and some will likely impact the FSF's interests. If they send lobbyists and lawyers to argue for specific wording, the laws might not suck so much.
As of right now, they are separate organizations.