I know many are smart enough and really intelligent - so please skip if you are one of those.
People who are kind of ingenuous or inexperienced, please listen --- sadly there is a bunch of opportunists who would try their best to increase their chances of getting offer by relying on people who reject. Some are spreading probably well intended incorrect information (these are the d-mbs) or by spreading ill intended false information (these are the vultures).
Broadcom (such a frugal company) doesn't pay heftily to talent for no reason. Poor performers, "entitled" lot and more-culture-less-work enthusiasts are kicked out left right and centre. Broadcom's voluntary attrition is too low, way too low (approx. a quarter of VMware). People must be liking something. You get paid heftily if you are adept at your job and are willing to work hard. If either is missing and you are too cozy in your comfort zone, you are gone. But isn't it true everywhere else (as we've seen across tech in past years). Companies which allow(ed) slacking, are getting acquired.
Finally - there are people who are suggesting that RSUs won't even vest and you'll be fired. First of all, check the vesting schedule (it is generally quarterly but do check). Even if it doesn't vest, Broadcom will pay severance at same rate as per merger agreement for the first year after close. You tenure will carry. Nothing is lost there.
Do your own calculations and make informed decisions. Don't listen to d-mbs/vultures.
D-mbs/ vultures' first comment will be oooo HR HR posted. I may be or I may not be from HR team, but I don't get any incentive here by asking people to make informed choices. My whole department is getting wiped out.
PS - The CHina CHina cheerleading team. Highly likely you don't have an offer. Go ahead and pray all you want for deal cancellation but stop preying on people who have offers.