some Small questions of a new hand

[Gwen Fu]

Dear GCC Community,

I have just joined the GCC community and am currently learning about the
framework and essential knowledge related to the GCC compiler. I have
cloned the GCC source code to my virtual machine, but I find the codebase
to be quite large and am unsure where to start. Do you have any suggestions?

Additionally, I have read the GCC community's development guide, and I
would like to start by working on some simple bugs to gain practical
experience. However, I am having trouble finding where these issues are
discussed (it feels slightly different from the discussions on the GitHub
platform). Is it only through the daily emails sent after subscribing that
I can find these issues?

Thank you!
>From Gwen Fu