Yes, mostly. The usual path is a P2P market where you send naira by bank transfer to a stranger and they release USDT or BTC from escrow. Some people start on an exchange app, but they still cash out through P2P. Buying straight from a friend you trust is common too, because nobody wants a frozen bank account.

Thanks for the wallet tips. Ecash sounds perfect for first-timers here, since there's no channel setup to explain. I'll try Noah with a few friends and report back on how it goes.