Random spinning wheel shows up on iPad's screen

re: "I am seeing a Spinning wheel witch pops up randomly"

"I am not so sure what it means"

Seems that iPad is summoning up the effort needed to complete a requested action.

(Eg: Some tasks (or apps) require a lot of memory, or enough storage space)

Often it is just a matter of being patient, while iPad gets on top of the situation.

You can check memory / storage :

(ie : to see if there is enough available for smooth operation)

How to check the storage on your iPhone, iPad, and iPod touch - Apple Support

NB: If storage space is mostly used up:

See: "Manage space on your iPhone, iPad, or iPod touch" in the article below:

If you need more space for an update on your iPhone, iPad, or iPod touch - Apple Support

All the best :-)