As far as I'm aware, one does not need any special deal with Elon in order to monitize their content on X. Maybe he just doesn't get how social media works?
Focus on what interests you most. Listen to the concerns of the business. Do not compare yourself to other devs, the business doesn't care (unless your at Google, Apple, etc). It's only worth it if you enjoy it.
I'll never forget my time in SF. Like the time I ruined a pair of sneakers stepping in a pile of human sh*t. Or the time I saw a young woman fleeing from a bum chasing her down the sidewalk. Also the spoiled bougie girls arguing over who could more easily talk their way into The Battery. Peak SF was 10 years ago.
LinkedIn eliminates friction better than anything else in my opinion. Applying to a job with a single click is brilliant. I wouldn't bother with anything else unless I was targeting something specific like climate, startups, etc.