Hi haorui,
I understand that you're having trouble accessing the Bedrock Edition of Minecraft despite purchasing the Deluxe Collection. It's important to note that the Deluxe Collection includes both Java and Bedrock Editions for PC with the Minecraft Launcher. However, the Bedrock Edition content only runs on Minecraft: Bedrock Edition on Windows.
If you're not using Windows 10 or Windows 11, you may need to go to Minecraft.net/download to get the Launcher for your operating system and access your game. Could you confirm if you're using either of these operating systems?
I hope this information helps, and please let me know if you have any further questions or concerns.
Best regards,
John D.
Independent Advisor