Prediction is important in table tennis.

Strong players often start moving before their opponent hits.
This is possible by looking at the opponent's form and predicting the course.
By practicing your predictive skills, you will be able to drive and block in games like a strong player.

Predictive power does not come easily.
By doing "seeing the opponent" every day, your predictive power will gradually increase.
So, apart from regular practice, if you can train for prediction, your efficiency will improve considerably.
It is this "smartphone table tennis stadium" that realizes it.

It doesn't matter if it's 10 minutes or 30 minutes a day.
Use your spare time to practice every day without overdoing it.
If you continue on a monthly basis or a yearly basis, you should be able to make a mistake in your ability to respond on the whole.
Now, train your prediction skills on the train or in bed!