I live in Thanh Xuan District, considered to be part of downtown Hanoi. I go to work by motorbike, and it takes around 30 minutes if I go at a leisurely pace.
If I choose to travel by bus, it takes just five minutes to walk to the bus stop from home and a similar amount of time to walk to my office after getting off.
So I used ride-hailing services to go to the office in the morning, and returned home in the evening by bus. I did that for five days, but gave up after realizing the bus trip back home took two hours.
I believe there are several explanations. I do not travel by bus often and so am not familiar with the schedule and had to wait for a long time for my bus to show up.
I do not think I am the only one with this problem.
As much as I understand the benefits of public transport, this is a deal-breaker for me. If a motorbike ban is ever implemented, and if the public transport system has not improved by that time, I will probably switch to a bicycle.