The is a popular mod for The Sims 4 by creator sims4me (also known as Bienchen) that prevents Sims from constantly standing up and wandering while dining.
Option 1: The "Problem Solver" (Best for Reddit/Sims Forums) 🍽️ Restaurant Sit Tweak
Is it even a Sims 4 date if someone doesn't stand up to do push-ups mid-appetizer? 🙄 The is a popular mod for The Sims
Option 3: Mod Recommendation Style (Best for Instagram/Tumblr) ✨ What it does: Stops Sims from autonomously standing up while dining. Prevents "musical chairs" during group meals. Makes the Dine Out experience actually playable! Prevents "musical chairs" during group meals
There are also specific addons for Seasons (no more holiday toasts) and Werewolves (no more pack gifts at the table).
If you are looking to promote or share this mod, here are a few post options tailored for different platforms: