A lot well most of bitcoin companies do transaction batching which means they bundle lots of inputs/outputs together in a single transaction so yes you will pay more with a large transaction the actual sat/B fee only needs to be 100-140sat/B for the next block BCH needs to be 2sat/B so realistically it's only 50-70x.

For me to make a single payment im looking at $3-4 at most my wallet won't even let me go over $10 for the absolute maximum highest fee top priority transaction unless I set a custom fee