Which is more profitable – an MMO with a monthly subscription or a free-to-play game?

How much time did it take, and what was the result? I mean, how many yuan were earned, even approximately, since it's hard for me to judge based on this statement, as mounts and gear can vary, and prices are constantly fluctuating depending on the gold exchange rate.

Hmm, my current style will cost around 9 million (at the current exchange rate): a panther for 3.5 million, gold and other gear together for 3 million, a flight for 9 gold, and some kind of dark skate. I currently have about 12 million in cash, and I'm wondering what would be better to buy: a flying mount or a tank bear for my druid. I bought the tank bear for 3.8 million at an exchange rate of 700 gold to 1.
To be honest, I don't remember everything, but I earned quite a bit this way.
It takes about a week to a month. I specifically saved for the panther for 3 days, at an exchange rate of 1 gold = 100.

It's also good to earn during holidays when the drop rate is increased. So you go somewhere, set up about 4 bots, and you're good to go :) Sometimes, though, nasty PKs kill you, so I recommend farming druids up to level 30.