Advice on logging libraries: Logfire, Loguru, or just Python's built-in logging?

Hey everyone,

I’m exploring different logging options for my projects (fastapi backend with langgraph) and I’d love some input.

So far I’ve looked at:

• Python’s built-in logging module
• Loguru
• Logfire

I’m mostly interested in:

• Clean and beautiful output (readability really matters)
• Ease of use / developer experience
• Flexibility for future scaling (e.g., larger apps, integrations)

Has anyone here done a serious comparison or has strong opinions on which one strikes the best balance?
Is there some hidden gem I should check out instead?

Thanks in advance!