[Samsung Galaxy A70 Questions & Answers] MoronsHater:
If you don't know why you need to root (without reason to install LineageOS, coz without root if i'm not wrong, it will not available), better stay away from root at all. Second it void yours warranty, but this is not worst thing, if you don't have nothing common with rooting, you can easily brick yours phone. Will be problems with that, you can easily lose it. Yhea, yhea developers probably know how to fix that and my warning sounds like funny post, but when I had one this situation, I had to bring it to authorized service (Then I had warranty and I did not said true what's happen in authorized service for fact that I could lose warranty. So they thought it just stucked my smartphone on boot without reason over night). As I know they changed motherboard and how I understand they did not unbricked it with programming process. So if authorized service will detect that it's your fault (if you will have to bring to they), you have to change motherboard (probably - it depends what to say to you authorized service), which cost for you a lot of money, coz you will lose warranty immediately. So if you want to root just for fact that some doing like that without any reasons (to change OS from official to 3rd parties - why need when update is will be official, you have warranty and ect???) - stay away from this idea at all. I recommend you at all don't modify software (if manufacture don't recommend to do some changes even in software). You can easily uninstall some unwanted apps (I couldn't to uninstall maybe only 5 apps from most, but they are still disabled very easily). Smartphone is smoothly, battery is very good. Why at all need to root this device??? Game running very well like: FIFA Mobile, Call of Duty Mobile, NBA 2K20, Asphalt 9 Legend (all in highest settings), if I remember right PUBG Mobile (which was mentioned in other thread and is very popular) worked to me smoothly too, but that game I don't like for strange blue (if I am not wrong) zone where need to run as quickly as possible someone from this zone, but I don't know where. Time always rans faster as I ran. I played it only maybe two time, ok three maybe for some minutes until I was killed by this zone. Don't worry you can play most popular games if you are gamer at all without any problems (i'm sure). Only NBA 2K Mobile lagging in this phone. It doesn't matter in low or highest settings, but how I understand from 2K, this is not phone guilty. As I understand, 2K did not supporting this game for Samsung A70 100% and probably it available in Google Play just for requirements compliance: need Android 8 or higher OS (Samsung A70 have Android 9). RAM must be more as 4 (Samsung A70 have 6 or 8, depends which version u ordered), also good and fast internet connection. There is no reason to lag, but lag is. So probably only these game you can't play from most popular games, I guess. Coz for me did not worked it good. Was big lag, then I bought NBA 2K20, which by the way is much more better as Mobile version. But I saw in Google Play is update for this game already which released December 6, 2019. Maybe already is fixed lag problem. Oh I forgot to write, lag is in Samsung S10 too which is flagship of 2019 from Samsung (I don't remember exactly in which model Note, + or any others, fact that in Samsung any S10 had to run it smoothly, but is the same problem. 2K explain that game is new, models are new, so... can be like this...but maybe will be fixed with future updates).

P.S. I don't know what you doing with smartphone: reading, watching video/movies or listening often music (sounds is not so loud as I expected and on all volume is not good, have distortion a little bit), browsing only or playing games. What is your skill of rooting and ect. I just wrote what I know and my recommendations to do not root. I tried some smartphone to root in past, I know some apps for that, I tried some methods for others phone and ect. So I know how possible to easily lose a phone if you are rookie at all in that. I can't understand at all why need to modify very good mid range smartphone with which you can do a lot of things without any problems? So sorry if my post sounds like scary warning or funny at all, but I just tried to shared my knowledge and experience about root, this model and ect. :)