I recommend a talk from Pycon 2019, wherein Dustin Ingram explains PEP-572 (aka the Walrus Operator) better than I’ve seen done elsewhere.

IMHO, the usefulness of this new operator outweighs the slight learning curve required to get past the awkwardness you will experience when you are first acquainted to it.

Here is that talk:

https://youtu.be/6uAvHOKofws