UK Tier 2 Visa - Reenter UK after visa expiry [closed]

I am a Malaysian and I have a Tier 2 Skilled Migrant visa that will be expiring on April 20 and I plan to leave on 15 April to go for a vacation in Poland before I leave Europe for good and go home to Malaysia.

However, my company has booked for me a flight home that will depart from London Heathrow airport on April 25, when my visa would already have expired and I could no longer re-enter using my visa when I return from my vacation.

My plan as of now is to try to re-enter as a visitor but I have the following questions:

Would I be able to properly exit UK by just going to Europe for a vacation? As in getting my passport stamped for exit so I can re-enter as a visitor? I have this doubt as I have heard before that it is border-less between EU and UK.
I have been advised by my agent that re-entering so soon is likely to cause the officer to question, or even refuse my entry as they would suspect my intention to leave the UK, is this true?
Would there be any difference with regard to my chances of clearing immigration if I enter the same day or one day before my flight and show my flight ticket home to prove my intention to leave? I have read about transit visa and my intention of reentry is really only a transit but I am a Malaysian and I do not need a transit visa to enter UK, is there such a thing as entering as a "transitor" rather than visitor to convince them it's just a short stopover?

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Can I come back to the UK after my visa expires?

If you applied for a new visa before your old one expired, you can stay in the UK until you get a decision. If your application is valid you won't be an overstayer. The Home Office can refuse your application if you: overstayed for longer than 14 days - even if you had a good reason.

How long can I stay after my Tier 2 visa expires?

If your visa has expired, you will need to leave the country within 30 days, or make a Home Office application within 14 days of your previous visa expiring with evidence of 'good reason' for having overstayed. Depending on the circumstances, you may be able to rely on COVID measures.

How long can I stay in the UK after my BRP expires?

You can apply for a replacement BRP when you return to the UK. You must do this within 3 months of its expiry unless you have a good reason, for example you were unable to return to the UK in that time.

How do you stay back in the UK after Student visa expires?

Student Visa extension

Be in the UK.

Hold a current valid (i.e. not expired) Student Visa or a Tier 4 (General) Student Visa.

Have an unconditional offer of a place on a course with a licensed student sponsor.

Have a Confirmation of Acceptance for Studies (CAS) for your new course of study.

UK Immigration : No More Delay for UK Visa | Fast Visa Processing for International Students | UKVI

Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

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