Yeah, the inventor gnome can work, just don't go full-on tinker with it. Tinker gnomes were just silly with their compulsive behaviors. It's ok if other races mistrust gnome tech, as long as said tech actually works or at least doesn't fail catastrophically like tinker gnome tech does.
We once had a flashlight made with the dragonlance invention table. It malfunctioned and turned a large field into glass... we assume it was fusion powered.
Dragonlance was a wonderful example of a literary world, where folks tolerate each other for the simple reason that the books need those characters as comic relief or tension breakers, et cetera. They can work in some games of D&D, but Dragonlance as a campaign was geared towards a very specific kind of campaign. Greyhawk, FR, Eberron, they were broader based and better able to handle varying archetypes. Greyhawk with classic gnomes, FR with some tinkerish gnomes and some less detailed gnomes, Eberron with information brokers, but you could still make whatever type of gnome (or other character) you wanted.
And really, dwarves are nearly always the same no matter what D&D setting they're in. But then the typical dwarf doesn't need work, it's successful, it's popular and people actually want to play it.
Though from reading ENworld, my campaigns seem a minority, for me dwarves have always been the least played race. And even then, when someone played a dwarf they always played that same "dwarf:. Elves had variety, gnomes, halflings, humans... but dwarf is dwarf.
(Very few half-orcs also, but I'm talking over the course of 3 editions, and they were absent for part of that. The 3e half-orc was also hard to break mold with though.)
Part of why I don't like the new dragonborn is because they are constrained by a given culture without a reason I like. Sure you can ignore it, but I don't like depicting a race with a personality.