Is Undertale Sans from Deltarune's World?

Is Sans from Undertale the same Sans as in Deltarune? This Deltarune theory has been floating around since 2018, and today I discuss its evidence, its holes

Still got that sweater. — SANS IS FROM. DELTARUNE

sans undertale meets sans deltarune : r/Deltarune

Deltarune Explained - What's the Connection to Undertale? - GameRevolution

Sans, Deltarune Wiki

Deltarune (Dark World) Sans - Animations by OcasCraft17 on DeviantArt

Is Undertale Sans from Deltarune's World?

Deltalogueunder AU: A Deltarune Dream World - About DLU - Wattpad

Undertale Part #6 - sans.

Sans, Deltarune Wiki

Theory] The Connection Between Undertale and Deltarune

Undertale and deltarune are connected

Sans but it's Deltarune by OcasCraft17 on DeviantArt

The Dark world is real Sans is a darkner

Deltarune (Video Game) - TV Tropes

DeltaRune: Beyond the Darkness (Television World) Community - Fan art, videos, guides, polls and more - Game Jolt