by the way, everything worked like a charm and as it should with Windows 11 pro installed. The 5G WWAN connection was as simple as inserting the sim chip and choosing the carrier in the cellular settings and vu la. 
For those Linux/Ubuntu enthusiast that prefer an internal 5g cellular modem from a Dell Latitude 7440/Intel 5000 5g, it will not work! Let me explain... I originally purchased the Dell Latitude 7440 Ultra Light laptop with all the bells and whistles. Ubuntu 22.o4 OS (Not The Windows OS) Intel Core i7 1365u, 1TB SSD, 32GB RAM, Intel Vpro  Ent. Management, Palm Rest Finger Print Reader, UL Mini Power Adapter (extra also), and last but not least, The Intel 5000 5G WWAN (for wireless cellular internet on the go/or for failover redundancy). When the device/laptop arrived one of the first things that I checked during the initial setup process was the Cellular/WWAN connection. To my dismay, it did not work. I tried to trouble shoot with the online documentation for cellular configuration at Ubunut's website. I tried various blogs but searching for a solution but to no avail. 2 days later I called Dell's customer support. The person I spoke to could not assist me and their wasn't anyone available with technical support knowledge for Ubuntu pre-installed Dell laptops. So I did what any sensible person would do and purchased a $150 paid subscription to Ubuntu's technical support. That was a dead end. Although the team at Ubuntu was very nice and helpful, they could not resolve the issue. Now this is my 2nd Dell laptop with Ubunut pre-installed (Dell XPS 13 Developers Edition). That was a beautiful machine. I gifted it to my son. Anyhow, the laptop is absolutely beautiful and fantastic! So instead of asking for a refund (which I was well within the 30 day refund policy), I decided to install Windows 11 Pro. I come from using Macbook pro and Dell XPS 13 Ubuntu 18.04, for the last 15 years and 6 years respectively. I have no complaints except for lack of features that those devices include. Microsoft has definitely stepped up their game with the all new feature rich Windows 11 Pro and coupled with Dell's hardware and also integrated software, well what can I say, the machine hits the sweet spot. performance, check. feature check, light weight and efficient check..... I currently own (Macbook Pro 2018 Intel i7, Macbook Air 2018 Intel, Macbook Air 2017 Intel, and now the 2023 Dell Latitude 7440 UL WIndows 11 Pro. The Dell is going to be my primary laptop and I use it for business mostly and light programming as a hobby. Well, I hope that my review/post gives insight to those thinking of purchasing a custom made latitude 7440 ubuntu 22.04 or windows 11 pro from Dell online.
7440 Latitude Ubuntu 22.04 Intel 5000 5G Card Will Not Work! Switched to 
Windows 11 Pro