“under a “talking filibuster,” any “member of the minority party can filibuster as long as he/she stays put on the floor.” But once a member finishes speaking, the filibuster would end, and “there’d be a vote at a simple majority threshold” of 50 votes, instead of the existing 60-vote threshold required to end a filibuster.
That’s a big change, because there’s currently no actual filibustering required to filibuster in the Senate, at least not in the conventional sense. As Vox explained back in 2015, the modern filibuster doesn’t require a senator talking on the floor for hours on end to delay a bill.
Instead, today’s filibuster is a straightforward move to reject unanimous consent on a bill that the minority can wield painlessly”
https://www.vox.com/2021/3/7/22318145/joe-manchin-filibuster-reform