Hello @KPescatore, and welcome to the forum!
Congratulations on your new System76 system! It must be a pleasure to work on. 
You can actually export them from your browser and import them on a new one per your bookmarks. The same can be done with your contacts (I believe the method is via a CSV file). POP!_OS is based on the Gnome environment, which is quite intuitive with its own email client (Evolution), which needs a few tweaks to be near-perfect. Just make sure that you activate offline viewing so that your emails are always available off-line and not having to be synced from scratch every time. This will vastly accelerate your experience. Also, point it (though I suspect itâs already activated) to not automatically show remote content. This will render you immune to the âno-click attacksâ that sometimes happen via malicious code inside questionable messages.
Also, for the Brave browser, I built a small script (basically accumulated the commands) and posted it here in the forum:
If you follow it, Brave will be in your system in a flash.