Dual nationality on a transit flight [duplicate]

I searched this forum but didn't quite find an answer for my questions. Here is the situation and I really appreciate everyone's help in advance.

I have two passports, calling it A and B. And I booked a flight from home country to Y, with a transit in X. I will stay one night in X so I will need a visa for X.

On my passport A, I have a visa for country X. I could get a visa on passport B as well but it's super time-consuming and it's hard to squeeze in another application between now and travel.

My passport A does not get me into country Y but my passport B allows me to get into Y without a visa.

So here is what I thought I could do:

Check in at home country with passport A to fly to country X.
Enter country X with passport A and visa.
Check-in at country X for flight to country Y with passport B.
Use passport A to clear immigration when exiting X because Immigration will check my visa and chop it.
Use passport B to enter country Y.
Direct flight from Y to home country so no more issue.

Does it make sense? A few things I'm not sure:

When I check-in at country X for flight to Y using passport B, will the check-in desk ask questions, since I don't have a visa on B to stay in X.
When I exit X with passport A, will immigration ask me for a visa to Country Y since I don't have country Y's visa on passport A? Can I show my passport B to immigration as well?

Thank you!

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Can a dual citizen be denied entry?

\u201cThose nationals or dual nationals holding valid immigrant or nonimmigrant visas will not be permitted to enter the United States during this period.\u201d The ban will not, however, apply to most US citizens\u2014even those who also hold citizenship in one of the singled-out nations.

Do dual citizens need to travel with both passports?

U.S. nationals, including dual nationals, must use a U.S. passport to enter and leave the United States. Dual nationals may also be required by the foreign country to use its passport to enter and leave that country.

Can dual citizens carry two passports?

Two Passports As a dual citizen, you are allowed to carry passports from both countries. For example, if you are a U.S. citizen and also a citizen of New Zealand, you can travel more easily between these two countries.

Can you travel with one passport and come back with another?

You can use whichever passport is more convenient for leaving country A, and whichever passport is more convenient for arriving in country B. They do not have to be the same passport. But you must enter and leave a country on the same passport.

Traveling with two passports - I almost got arrested | Jure Sanguinis Italian Dual Citizenship

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