Doubts regarding this phone

[Vitor_Hugo]

Hello guys, recently I dropped my LG G2 and broke its screen, so I decided to buy a new phone. I've searched a lot in the internet and I think I'm going to buy a Galaxy S7, but before doing so, I would like to get these questions answered (I would really appreciate if you could answer these questions, it'd help me a lot):

1. Which version would you recommend me to buy, S7 or S7 Edge? Is it purely up to my taste or are there any key differences? When it comes to my taste, I prefer S7 because I don't like the curved edges.

2. Should I pick the Snapdragon version or Exynos version? I have the possibility to choose, which one is better?

3. I'm afraid of burn-ins that are very common on AMOLED screens, does this phone suffer from kind of problem?

4. Is it possible for me to root this phone and then unroot it without letting Samsung know it was previously rooted (I mean, still get warranty after unroot)?

5. What about custom ROMs? Are they easy to install on this phone? what about camera driver, is it released by Samsung or is it closed source? (I'm asking this because my current phone, LG G2, doesn't have its camera driver released by LG, that means, we use a generic camera driver on custom ROMs like LineageOS and thus reduces the camera quality a lot)

Thank you for your time

 

[*Detection*]

1. Personal choice, same specs, bigger battery/screen in Edge
2. Exynos (Snapdragon is bootloader locked)
3. Not been many complaints, only a handful
4. No, once you flash custom you permanently trip KNOX, no reset
5. Not as easy as older phones but still fairly easy, camera driver not open source afaik, needs a touchwiz ROM for full quality

 

[Vitor_Hugo]

Thank you for your answers.
About question 4, all I want to do by now is root and use this app:
http://www.androidpolice.com/2017/08/12/hands-battery-charge-limit-rooted-devices-exactly-expect/

Don't you think I can root and use this, then unroot and still get warranty? (I'm asking this because you said "flash custom", maybe you got me wrong)

 

[JeffDC]

I think, re: 4, and what Detection said is that you will trip the Knox, and then Samsung will know the phone has been OS tampered at it's root level. What will Samsung do then about your warranty, knowing you intentionally breached their OEM OS?

 

[*Detection*]

Root is custom, root trips knox