It's unclear from the text of your comment, but a large part of the reason why Tesla is opening them up is funding from the Inflation Reduction Act.
> In February, the company announced its plan to open a portion of its network of charging stations to other manufacturers' vehicles, in order to align with the Biden administration's plan to create a national grid of over 100,000 public chargers.
Tesla is opening its superchargers to others [1]. I’m surprised we haven’t tied tax credits to interoperability yet.
[1] https://www.cnet.com/roadshow/news/select-tesla-supercharger...