The free trial already ends. But it still have the "Free trial" button on the page

I understand. But have you tried to download the Bundle Installer on the Xbox Store? I see on your screenshot that you are trying to download it using the Minecraft for Windows link, not the Bundle link:

https://www.xbox.com/en-US/games/store/minecraf...

See if it still shows as Free Trial or Install To.

I bought Java Edition on 24 May 2022. But I refunded it.

I bought the Minecraft: Java & Bedrock Edition for PC (the Bundle, released two days ago) on Minecraft official website (https://www.minecraft.net/en-us/store/minecraft-java-bedrock-edition-pc). on 8 June 2022.

I have uninstalled the Minecraft Launcher and reinstalled it.

I cannot see the "Get" button. It says I need Game Pass

Hello, peachyheart. Thanks for reaching out! My name is Lucas, and I'm an Independent Advisor and a Microsoft user just like you. I'll be happy to assist you today.

Have you tried to uninstall the launcher and all Minecraft editions you have on your computer?

Also, did you purchase the Minecraft: Java & Bedrock Edition for PC (the Bundle, released two days ago) or did you purchase Java Edition or Windows Edition before the offer?

Waiting for your reply, my friend.

That just means it is redownloading the free trial

You don't upgrade from a trial you only can buy the game which is a completely different option

When you go to the same page it will still list as free but it would be the same content

You will have to go to the actual purchase page of the game not the trial page

And no there is no promotions for it to be free