Do you think a wild Pokémon ever evolved into a larger form while in a confined space and couldn’t get out and slowly starved to death?

Depends on how forcefully they evolved, maybe they broke their surroundings

I was about ti say they could be called back into their Poké Balls, but then I saw the "wild" part.

Eh, maybe catch them with a high catch rate ball.

This reminds me of the meme about someone finding a post titled “How do I get rid of a baby?” and started to get mad before realizing it was posted in a Sims 2 help forum.

I remember a webcomic from way back where a guy gets a Magikarp and doesn't know what to do with it so he grabs it by the tail and starts whacking other pokemon with the Magikarp. Eventually it evolved and this pretty much happens.

Sounds a bit like colmscomics, but I can't say I remember if he ever got a Magikarp.

Well since pokemon legends arceus tells us that the shrinking to go in the pokeball is done by the pokemon and not some technoscience in the ball, they could just change size and get out

Hell yeah, now it's the perfect size...

So then why do we even need pokeballs then?

https://thepunchlineismachismo.com/archives/comic/04192010
https://thepunchlineismachismo.com/archives/comic/04262010

Well BAM, there it is!

There's more earlier, but whatever

https://thepunchlineismachismo.com/archives/comic/04192010
https://thepunchlineismachismo.com/archives/comic/04262010

it's this

Wait.

... what.

So... any pokemon, at any time, could just... decide to become ant man, and become the size of a lepton?

... could they just like sneeze one day and accidentally become the size of the Milky Way?

Thats the one! Its been a while, that was an awesome webcomic

Said game also includes a mechanic where you can get big versions of the pokemon and there is gigantimax in sword and shield where they become kaiju sized

Because something about them triggers the shrinking pokemon can do, and if a pokemon doesn't want to get in the ball it just doesn't get caught

I get the feeling they just made all this up and it's complete bullshit

So Pikachu could kill his enemies from the inside. A thundershock on Charizards liver or something idk...

It's more of a stasis thing. The old pokeballs trigger that. Modern ones digitize pokemon into information though.