If you are only looking to trade with currencies, I suggest using the MT4 since it is suitable for currency trading with its technical and fundamental analysis.
For CFD and advanced trading methods, the MT5 is good because it is the advanced version of the MT5 and has more trading tools than the MT5.
Your statement is misleading. MT5 is equally suitable for trading currencies and has more technical and fundamental analysis built in
MQL5 is more complicated but less fragmentary. There are some important concepts that you will understand better if you know a little bit about the MQL4 side of things.
But Meta Quotes does not support MT4 anymore. You can not download MT4 from mql5.com anymore, only from brokers. It is bleeding out. Would you advise a beginner to use Windows 7 in 2022?
MT4 backtest only support cpu 1 core and 4gb ram i think , this is not very good for you to test some big data thing , in same ea you can do better in mt5
If you are only looking to trade with currencies, I suggest using the MT4 since it is suitable for currency trading with its technical and fundamental analysis.
For CFD and advanced trading methods, the MT5 is good because it is the advanced version of the MT5 and has more trading tools than the MT5.
If starting out go with MT5 straight off, it is the better platform.
MT4 only still exists because it's legacy user base and is not being updated.
MT4 IS still updated:
https://www.mql5.com/en/forum/383675
MT4 IS still updated:
https://www.mql5.com/en/forum/383675