I didn't find anything about BTC, they use more USDT but I didn't find any type of address.

I think that’s a shit idea. Do you even understand the conflict? Do you know what your donation will be used for? Just because they are called „freedom“ fighters doesn’t mean they are virtuous. Also, even if they overthrow the junta, do you think they will be able to be a better government? Or will they be the next oppressors, as it happened so often throughout history even recently? I don’t put money into a black box as a matter of principle. You don’t know who you might be hurting, thinking you are helping the „good cause“. Unless of course you really know hat you are doing, but it doesn’t sound like it.

Exactly. Just look at how much money has been sent to Ukraine, so that more Ukrainians can be killed. Do your homework first.