14 pro max, still a beast or duck

iPhone 14 pro, still worth it ?

A relative gave me an iPhone 14 Pro Max, and it’s in good working condition. The battery health is at 77%. The problem is that after using the phone for some time, it gets hot very quickly.

I already have an Android phone S23 ultra , which is my primary device, but it has a battery problem.

I would like to switch to an iPhone, but I’m thinking of getting the iPhone 20 which will come next year after 18.

So my question is:

Is it worth spending money on the 14 Pro Max and replacing the battery with an original one? Will it last for another year? Is it worth it? Also the phone heating and occupational stuck issues will be gone ?

After replacing the battery, will the phone feel/perform like it did when it was new? If it will, I’m thinking of making it my primary phone.

I’d love to hear your opinions.

In summary, if I replace the battery of my iPhone 14 Pro Max: a) Will occasional freezing issues be resolved?

b) Will the device perform like new?

c) Can I expect 8-10 hours of battery life?