Bighorn & Longhorn started out the same
A Texas Bighorn was called a Longhorn with some fancy
leatherwork
For the last couple of years, they have played with the different model names
some models were switched about because of the covid scare
No, the Bighorn was a model in itself, one trim level below the Laramie.
Then came the Laramie, the first level into the higher-end trims followed by the Larmie Lognhorn, and the Laramie Limited.
As noted in post 6, RAM, in what was an attempt to simplify the trim level naming, came up with Laramie, Limited, and Limited Longhorn.
On my 2022 Longhorn, the exterior badging says "Longhorn" and interior badging on the center armrest and on the upper glove box lid says "Limited Longhorn".
On my 2015 Longhorn, all badging says "Laramie Longhorn".