You have right!
I saw in glint store that not only rarity draws cost more in glint, but cost really a way more gold foil potions. 😱
I bought 500 potions from store and all goes to just 100 rare draws, because it is 5 for 1 card lol. Heh and I didn't get any gold card unlucky, but spent whole glint for that.
So I decided to spent glint only for chests or sometimes energy. Gold foil cards I try buy from the market, while people chasing regular max lvl foils.