Should I accept Google offer if they offers same salary/compensation as my current company?

Hi
Recently I got an offer (verbally) from Google. I am currently working in a Startup as Staff eng, with 12 year exp. My current compensation 50 base, 10% basic and staryup stock.
Google India's offer
L4
28 base
20 stock
15% bonus
HR might compensate the difference 2lac with joining bonus.

I got last hike in April 21. I am very confused with Google's offer, no financial benifit, at least immediately. HR trying to add some bonus and 1/2 lac stock and asking me a joining date. Any suggestion?
Current startup Harness
YOE 12
Staff eng
50 base, 10% bonus, $4k stock (pre IPO)