That variant is a Sneasel variant. Its stats are irrelevant. That is all.

I tried hatching an Abra a day or so ago for the contest, and apperently abras color is brown? I can see that it's brown on the chest area, but Abra is mostly yellow. Is this an error? (I do not have shiny Abra registered, if that helps)

Volcanion’s colour is listed as brown here, but should be red.

this isn't an error - brown is volcanion's canonical color category. pokédex colors are weird. edit: ok so the bulbapedia page for volcanion says it is red, but its list of pokémon by color says it is brown. i'm not sure which is the correct one. edit AGAIN: just so happened to have a volcanion in pokémon home, can confirm the dex there says it is brown.

Hmm, so I’m getting some mixed results looking through various wikis(using my sketchy knowledge of colors in other languages when needed). The general consensus seems to be brown? Edit: just putting my findings here for fun(because I made a list before learning of the HOME data and I also found it kinda interesting)

An oddity I've noticed with a few Pokemon that are exclusively one gender is that their Pokedex entries use gendered pronouns to refer to the species, inadvertently implying that the species in question consists of one individual. Furthermore, in most cases these entries are modified versions of canon dex entries, which refer to the Pokemon as "it" like other species. However, I understand if this was done deliberately as a stylistic choice. What I'm flagging as a potential error is that this usage of gendered pronouns for Pokemon that can only be one gender is applied inconsistently across the Pokedex, and sometimes even within the same line or counterpart pair. Related Pokemon with inconsistent pronoun usage in their dex entries include:

• Tauros/Miltank: Kantonian Tauros' entry uses masculine pronouns ("Once he takes aim at his foe...", but neither the three Paldean forms nor its female counterpart Miltank use gendered pronouns ("..so it's been supporting...", "It swims by jetting water from its horns.").
• Tyrogue's entry uses masculine pronouns ("He is famous for his eagerness to fight..."), but none of its evolutions (Hitmonlee, Hitmonchan, Hitmontop) do.
• Smoochum's entry refers to the species as an "it", but its evolution Jynx uses feminine pronouns ("Her cries sound like human speech.").
• Tinkatink and Tinkaton's entries use feminine pronouns, but the middle stage Tinkatuff uses neutral ones.
• Other canon gender-exclusive Pokemon with gendered pronouns applied consistently and accurately when applicable include the Happiny line, Wormadam and Mothim, and Gallade.
• Canon Pokemon that are gender-exclusive but do not have pronouns in their dex entries include Nidoran's branching evolutions, Kangaskhan, Volbeat and Illumise, Froslass, Throh and Sawk, the Petilil line, the Rufflet and Vullaby lines, all four Forces of Nature, the Flabébé line, Salazzle, the Bounsweet line, the Hatenna and Impidimp lines, and the Milcery line.
• Site-exclusive Pokemon don't follow a consistent set of rules regarding pronouns; for example, the all-male Caprikid line uses gendered pronouns but the all-female Valkind line doesn't.

TLDR: The Pokedex is applying gendered pronouns to Pokémon that can only be one gender, which is not done in the official games, and is inconsistent about when this is applied. Some clarification on the matter would be appreciated.

i noticed in the paldean dex that only koraidon shows up as a pokemon instead of cyclizar under the pokemon number 966. there also isnt a dex option for miraidon, nor a visible one for cyclizar. is that intentional?

Moraidon/Koraidon + other 2 formes are considered as a "Forme" of Cyclizar so it shows whatever forme you looked at last. It is similar to the other Paradox Pokemon like Delibird. If you view Delibird the dex will show Delibird in the list but if you view the Iron Bundle Forme, leave the page, then return the Iron Bundle will be where Delibird should be.

i had no idea abt this, thank you for the assistance!!!