Another potential problem with a charger like that is it requires a separate micro USB cable, and standard micro USB cables are not designed to deliver much more than 500mA (0.5A) without voltage loss. So the problem is twofold. The charger may not be adequate, and the micro USB cable delivering the power may have too much resistance.
This is why phone chargers are not recommended as power supplies for a Raspberry Pi computer.
That being said, some phone chargers will work fine (provided you have a good micro USB cable as well). The problem is, without a proper load test you can't be sure. It may work fine for light tasks, and then you try something that pushes the SoC really hard, or connect a power hungry USB device or HAT and bad things start to happen. We've seen this before where people ask for help with a power problem and swear their PSU (charger) is fine, because it's been working for weeks.
So, if you are on a tight budget, give it a try, but don't be surprised if you run into power problems (now, or in the future). Also, use a micro USB cable rated for fast charging phones at 2.4A, not a standard cable.
Note that when there are power problems it could result in corruption of data on the micro SD card. Usually this is not permanent (the card can be reformatted or reimaged and will be fine), but there is a small chance the card may get locked in read-only mode and need to be replaced.
If all of this leaves you feeling uncertain, the official 5.1V/2.5A Raspberry Pi Power Supply is a proven performer, and usually quite affordable (not the new 3A version for the Pi4, which has a different connector).
My mind is like a browser. 27 tabs are open, 9 aren't responding,
lots of pop-ups...and where is that annoying music coming from?