For my now-four year old, it was a very gradual process. We introduced the potty at around two and a half but didn't really push it since he showed no signs of being ready. He'd occasionally use it but mostly just for fun - like sitting on it buck naked playing with his toys haha.
I think what really made him decide to actually use it was when we started giving him a small treat every time he successfully peed in the potty. We also made sure to never push or force him, which I think helped a lot. He'd always have the option of using his diapers if he didn't want to use the potty and we'd never show frustration if he did - which happened quite often haha. But eventually, he got there!
It was a slow process though, took probably close to a year from introduction to actually being mostly accident-free. And even now, nights are still hit or miss. But overall I'm so proud of him and happy that we never had to go through the stress of intensive potty training. Just a very gradual, laidback approach worked for us!