I am building a Duegar Alchemist with a Folk Hero background who's inspired by the support/utility role builds I have been hearing and reading about. In other words, a character who focuses more on using their abilities, skills, spells and tools to buff up and round out the party rather than dealing direct damage, controlling the battlefield, or taking up a more specific role. I am hoping to accomplish this by:
Using his skills from Cooking tools to make sure the party's well-fed, from Mason tools to analyze the buildings they might find themselves in while skills from his Theives' tools assures them a way to escape, from Smith and Tinker tools to keep the party's gear up to snuff, and Vehicle (land) proficiency to assure that the party makes it from one place to another safely (Mason from his race, Cooking and Vehicle from his background, and the rest from the Artificer)
Using a combination of Magical Tinkering and Alchemist tools to prepare spells like Guidance, Mage Hand, Alarm, and Grease, as well as distractions and deterrents like alchemist fire or a throwable box that either shakes to attract purple worms or smells to attract werewolves... perhaps even other grenade-like traps...
Using his Infusions on party members, such as to beef up the Barbarian's axe or buff out the Fighter's armour.
In actual combat, I plan to focus primarily on buffing my allies or doing ancillary actions around the encounter, but directly attacking is not my primary goal.
Now that I hopefully painted a picture of the character type I'm trying to build, my current issue at hand is to figure out how to manage his ability scores effectively. I was thinking of painting an homage to his upbringing as a pack mule by making him robust, resiliant, and resourceful (using a stat array of 15 Strength, 8 Dexterity, 15 Constitution, 15 Inteligence, 8 Wisdom, and 8 Charisma), but wonder if the low dexterity of this point-buy system would get in the way of playing him as a "supporting character."
For instance, I know that the low Charisma will make him struggle at social interactions, and his lack of Wisdom would make him rather gullable or sinical (which I am willing to play into), but I am wondering if the lack of acrobatics, stealth, and other Dexterity-based abilities would be as detrimental to his role as it might for, say, a Scouting Rogue, or Nimble Monk? As there are weapons like Slings that he can use for a strength-based ranged attacks (if needed), would it affect his ability to help the party in battle? Are there ways to use my Strength to overcome some of these disadvantages, or would it be better to use more of a Standard Array to achieve my build goals?