Assalamu alaikum. As a novice reader I find the indopak font used in Quran.com the easiest to read. for example, alif and laam are harder to separate in the indopak font used by this app. also the way 'ha, jim, kha is sometimes merged with the previous letter are also harder to get used to.
please at least compare the fonts and consider if it's viable for the font to be added.