I noticed some small cracks near my front steps—should I be worried about water damage? Also, is it normal for bricks to feel a bit chalky after rain? Thanks for the info!

https://yourhomify.com/brick-damage-warning-signs-for-homeowners/

I noticed some small cracks near my front steps—should I be worried about water damage? Also, is it normal for bricks to feel a bit chalky after rain? Thanks for the