If not all browsers support a feature, don't use it, or make it optional. It's not that hard. If you can't figure it out, ask your LLM.
You appear to be arguing that we shouldn't care that Apple provides a consistently bad experience and locks their users into it, because web developers can level the field by degrading everyone else's experience too. There's a nice couple paragraphs in the article that explain why we should in fact care, and you don't seem to have addressed them, so let me reproduce them for you in case you missed them. (also fyi "it…
What do you think Google and Microsoft have? The writer is an MS engineer, deeply involved in Chrome/Edge. This has nothing to do with being able to deliver for the user or the developer, but only for Google's position in the ad market.