Do you think you can improve your chess just by playing online?
We do believe you can't, here's why:
Online platform player matchmaking is done with one and only one target: they want you to have fun.
In order for you to have fun you need have some chances to win. So they pair you with players your same strength. This way you're stuck with people who is struggling with similar problems to yours.
You may think "This is not that bad. Eventually you'll learn from each other. Isn't that what happens in chess clubs?". The problem is that 99% of the time interaction is reduced to the game itself (and, let's be honest, may be some bad words over the chat 😅).