Hey Alex,
I would say in this situation a bit of both methods you mentioned depending on the topspin from the opponent, sometimes if it’s very deep you need to step back and give yourself more time and space to play a good shot.
However if you can then try to get back into the table and block or counter attack to out your opponent back under pressure that’s ideal.
To block these shots well you need to have a relaxed grip and try to have a soft contact on the ball to control the speed and spin. Glad you enjoyed the video Alex and hope this helps too!
Tom 🙂