Cool, I chose a brand-new T580 from the factory in 2018. I had nowhere near the resource demands that you have, so I am happy to be chugging along with the i5, 128GB SSD, 16GiB RAM. Two upgrades I probably didn't even need are a touchscreen and a medium-size second battery, but otherwise, it's perfect.
Initially I put CentOS on it, which was really broken, so I swapped in Fedora which worked great. The T580 is RHEL-certified (other models are Ubuntu-certified, so it's interesting you chose Debian for yours.) Eventually I reverted to Windows 10 and upgraded to Pro.
It's now my only home computer and daily driver, for work and personal both, for the time being.