Yes, but not in a way that benefits anyone immediately. They made deals with each individual brand (I think every US make except Stellantis now), in which those brands will start putting Tesla charging ports on the cars in future model years, and in some cases offer adapters to existing owners starting in 2024 or 2025. Each brand also needs to integrate with Tesla for payments in some way, since 99.9% of their charging stations don't have screens or payment terminals. The predictions I've read are that will mean new versions of each company's mobile apps, rather than having non-Tesla owners use Tesla's app.