Should I switch?

Context: So I'm a lawyer currently working with the Big4 as a senior consultant in the Business Consulting vertical. I've been here for the last 2.5yrs. I'm due for a promotion to manager this year. However due to multiple people leaving who I used to gel well with along with the fact that of late since the last 8-9 months the team I work for has become too pro work instead of looking into individual welfare has got me very dissatisfied with my work life here. Mind you that I'm given proper recognition for the work I do in terms of awards, retention bonuses etc. have all happened but since the last 3 months, this dissatisfaction has been brewing in me. Although there has been no negative incident which has happened to me directly, I've been informed of many conversations second hand where seniors have been behaving very rudely and in a rash manner with my other team members.

All of this led me to thinking that before the going gets tough, I should venture out and look for better opportunities elsewhere. In the midst of my job search, I have received an offer today with a big Indian MNC in the Retail and e-commerce space to join their legal team as a counsel.

Now that I have this offer, I am contemplating whether I should go for it as it would mean shifting cities with my wife.

My wife is 50% against me shifting as it would mean leaving the Big4 and she keeps telling me that to tough it out and to see this as an opportunity instead of jumping ship as no indian MNC would be able to provide a better experience and exposure that a Big4 is giving me.

Salary wise also, I've kept in mind that I won't be shifting unless it's a 30% hike along with relocation payment. However, i have a feeling that this MNC will provide that also if i ask for it.

So there my ask to the forum here, should I shift or stay?

Please lend me your wisdom!

P.S. This Indian MNC is big like Tata, Adani, Reliance Big (without taking any specific name)