If I buy elden ring on the microsoft store can I play it on xbox cloud gaming?

Only games that are on Game Pass can be played on the cloud. Elden Ring is not on Game Pass, so is not on the cloud.

It goes to the Elden Ring cloud so as long as the accounts are logged into the game it should work fine.

No you cannot

If the game is not PlayAnywhere, you cannot do this.

Elden Ring is also not even available on the Xbox store

For example, I play diablo at the beginner level. I like to enjoy the story instead of being stuck on a boss for 10 hours

For example, when buying Elden ring, there was no warning that the game has a high difficulty level. I liked Elden ring because the game gave everyone all the opportunities and money to earn.

Chess is also a difficult game, but everyone has the opportunity to choose the level. Before buying such games, the user should be warned that there are no difficulty levels and the game is very difficult

I don't know where you are getting your information from?

But, Elden Ring is on sale with a 30% off at the Xbox store!