For example, I bet 1 satoshi on <50, then how many times can there be winning numbers >50? I bet <50 and after each loss, I doubled the bet, a total of 11 times the winning numbers were >50 and I lost most of my funds
The outcomes are random so there are
endless possibilities.
The most (losing numbers) I encountered was 14 in a row (based on X2 multiplier) while another guy in this thread had like 20(?)-ish.
Yes but how many times did you encounter it?
And how many times did you encounter only 2 or 3 losses in a row?
So do you think it's more relevant to bet on a 14 losses in a row streak or on a 13 losses in a row one?

It is all about your luck.
If you are not lucky, you start betting right now and get 100 losses by choosing high. You can even get the same result if you choose to alternate your bets. Yes it is possible. Now you see how scary it is.
The opposite can happen too if you are lucky. One big if.
I tried to win by martingale and did my own experiments in the past, a lot. 20+ losses a lot more common than you think. When you start with 1 sat and lose 20 times, you'll find yourself risking 0.02097152
BTC on your 21st round.