Shouldnt i scale in obj mode ?

are there any issues with scaling in obj mode ?

im lately rendering a lot in indigo , and when i use curves , exrude them , make them 3d ,

then i get artifacts in indigo , if i scale them in obj mode , i get normal artifacts ,

they’ve told me that to correct these artifacts i should do ctr+a ( apply scale , size n rot )

bt if i do this , the curves get all meesed up.

what should it do to not have to do ctr+a ?

also if i import a curve from inkscapw , and rightaway i press crt+a , they get all meseed up , al in a single line.