Just curious, the tempered glass sold at Sony center how much ya?

i bought mine from Lazada, rm25 if i'm not mistaken. pretty decent for me.
Blue color curved tempered glass.

what do you mean by complete coverage?

the tempered glass only for the screen. dekat belakang tak bagi sekali. 

you can see it here.

https://www.lazada.com.my/miimall-3d-curved...ails.0.0.DgxqBs

recent google apps which integrated with weather, maps to have a lot of background running.. especially if u like to turn on device to check time.. everytime u turn on the screen, they will update the weather info, traffic condition for u.. to me, i just disable all these..

Maps, Google App.. By disable google app, u will disable most google feature like google now, screen ontap, smart lock & others.. but it do help in battery efficiency..

everyday need to restart the phone now. if got unlucky, only after hours then need to restart.

as i remember,

since May or June system update, the lag problem is unresolved. I'm start feel tired of this phone..so disappointed.. haihh. I'm not expect will face this kind of problem on the flagship phone actually..

now need to think if can avoid this with use of custom rom.. but.. extra time need to spend..again..

all this workaround is for a temporary solution and it could be the hearsay only.. normally i would not follow it rather I just restart the phone.

my personal view... if we need to disable this disable there to get back the performance so it's not a smartphone anymore.. semakphone maybe.. haha.. joking bro.