No, your chargepoint card won't work with EVgo - they are separate companies. *IF* you feel you might use an EVgo unit you should consider signing up with them - you might be able to get a free card from them. They have subscription plans where you pay a monthly fee, but you can also get a card with no monthly fee (but the energy cost when you use it is more).
I highly recommend that you go to
https://www.plugshare.com/ to find public charging close to you. Type in your address, and zoom the map to show 10 or 40 or 100 miles close to where you live/work. Set the plug-type options for "EV plug" (i.e., 240V level-2) and "CCS/SAE" (i.e., DC Fast Charge - "Bolt"-style) and
UNSET all the other connectors (you can't use them). That will show you all of (well, most of) the available public charging spots near you. Next, unset
all of the Networks (including "Other") and then ONE BY ONE set each network and look at what is available close to you for EACH network (one at a time). That will clue you in to which networks have a lot of stations near you (or maybe just the most convenient ones). That way you can sign up for the 2 or 3 networks most convenient to you. And you can do the same thing along your route before you take a trip. (I have taken a trip and dropped off the family and luggage at our destination, then gone to a closeby public charger and left the car for hours to charge at max rate while I visit family/friends, then I pick it up later).
PlugShare also has smartphone apps for both iOS and Android devices, so you can find them "on the road" - but planning ahead is better when you can.