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They don't pay contributors in a Patreon- or tip4commit-style scheme; they employ certain core developers. If you are not a subsystem maintainer / lieutenant, you're not going to get a job offer from them. (And even if you are you shouldn't expect one.)

This comment is useless without knowing what/how many contributions you have made.

"They have been solicited to pay to attend LF organized conferences."

That appears to be a big part of the business model of LF.