Ex-Maybank IT here, WFH arrangement totally depends on your department & team.
But from what I know, most are already back to office 5 days a week.
Some still allow 4 days in office + 1 day WFH.

I completely agree with this about Maybank IT departments.
Bonus is usually around 3 months.
Work-life balance was close to non-existent if you are supporting any critical components (core banking/payment gateways/etc).
Had to standby for deployment, disaster recovery, sometimes even to support user testing over the weekend.
Boss/lead used to mandate people to be stand-by onsite even when it is completely unnecessary.

Every year my team's resignation rate is around 30%+ after receiving their bonus. (I was there for more than 5 years.)
And yes, many foreign Indian staff in some of the departments.

On the flipside, you can apply for training few times a year and enjoy few days of vacation with food and accommodation provided. (subject to approval)
And they have gyms, game room with PS5, pool table, nintendo switch, VR headsets, massage chair, nap pods, and even a theater room for karaoke or watching movie. And it is fairly simple to book.
I also heard they will be moving to a new building by 2026.