with the PR (and same clocks):
[31203.188418] usb 1-2.4.1: new full-speed USB device number 14 using xhci_hcd
[31218.674238] usb 1-2.4.1: device descriptor read/64, error -110
[31234.546034] usb 1-2.4.1: device descriptor read/64, error -110
[31234.722012] usb 1-2.4.1: new full-speed USB device number 15 using xhci_hcd

defmt output: 
0.000000 INFO  Hello World!
└─ stm_blink::____embassy_main_task::{async_fn#0} @ src/main.rs:31  
0.000457 INFO  Waiting for connection
└─ stm_blink::____embassy_main_task::{async_fn#0}::{async_block#0} @ src/main.rs:122