ts why you want to complicate things with such budget. Gaming on a budgeted notebook wont last you another 10 years.

this budget computers are cheap for a reason and you are so fuzzy even you will scare the seller away .

with such budget what important are not what thermal paste, looks la, naming la

1) warranty
if budget so low, if spoil repair will hurt your pocket and if repair too long you cant wait so find which is the best fastest and longest warranty

2) must have SSD on such average spec a ssd will make your entire experience more responsive.

3) gpu card so if you are gaming find the notebook with the best gpu.

4) ram find a notebook or add ram minimum 8gb and above.

all the rubbish you mentioned are totally useless