This is an option on the F150 and apparently available as a 2019 Ram accessory. Has anyone installed it?
www.amp-research.com
I've included this installation video, but if I read the instructions (http://d12lrhf1a6n0y2.cloudfront.net/Products/DigitalAssets/isheetAssets/AMP RESEARCH/IS-75414.pdf) correctly, no drilling is required on the 2019 DT.
AMP Research - BEDSTEP 2 | AMP75414-01A | AMP Research
Side steps for hard-working trucks. The AMP Research Bedstep2 mounts just behind the cab, forward of the rear wheel, providing a faster, easier and safer route to access toolboxes, equipment and cargo in the bed. Easily installed, this frame-mounted, retractable truck step can be mounted on...

I've included this installation video, but if I read the instructions (http://d12lrhf1a6n0y2.cloudfront.net/Products/DigitalAssets/isheetAssets/AMP RESEARCH/IS-75414.pdf) correctly, no drilling is required on the 2019 DT.