Offer from both companies. Almost same base pay.
Salesforce - no joining. RSUs yes, but no refreshers
FB - 100k joining bonus. RSUs and Refreshers.
Heard that Salesforce has much better WLB and peace of mind than FB.
So it is WLB vs money. Which one to prefer?
You'll also most likely stagnate because you'll be doing uninteresting maintenance work or boring feature development on legacy tech and code.
Unless you're literally starting a family now, go to Facebook. I was in the exact same situation and would choose Facebook if I could go back.