We have 5” handles on our 36” drawers and they work fine. Not a fan of 2 handle drawers as they look odd to me and you need two hands to open them.

I agree but they require to put two on drawers 36" or longer. I did consider doing all knobs instead but worry it will be too many knobs

They are not technically too long, but bin pulls are hard to use already and they seem really inconvenient if you have two on a drawer. We have two knobs per drawer on our drawers that size. It is a lot of knobs, but I think it looks cool, it creates a grid like pattern.

I have two handles on all my drawers and it's fine. I was originally going to use bin pulls like you have (and would have also used 2 for my larger drawers) but because we're getting up there in age, we realized they might be a bit difficult for us as we age.