Fun Fact, Ash's Galarian Farfetch'd (which would go on to evolve into Sirfetch'd) was the first Version Exclusive Pokemon he caught, being exclusive to Pokemon Sword (Serebii and Bulbapedia don't list Solgaleo

Galarian Farfetch'd and Sirfetch'd - Origin of Species

Ash Adds Surprising New Pokemon to His Collection in Latest Journeys Episode

Farfetch'd Is Getting A Region-Exclusive Evolution In Pokemon Sword & Shield - GameSpot

The History of Ash's Farfetch'd

The History of Ash's Farfetch'd

Ash's Sirfetch'd - Bulbapedia, the community-driven Pokémon encyclopedia

Game Freak Has Been Trying to Evolve Farfetch'd Since Gen 2

Misty about to unleash Gyarados in A Togepi Mirage. : r/pokemonanime

Ash's Galarian Farfetch'd Evolves into Sirfetch'd

Ash's Sirfetch'd - Bulbapedia, the community-driven Pokémon encyclopedia

Ash's Sirfetch'd, Pokémon Wiki

Ash's Sirfetch'd, Pokémon Wiki