Of all of the things that I vastly prefer since moving to Lemmy from reddit, anything related to Apple is not one of them. I'm actually surprised because talking about anything Apple on reddit was always a circlejerk pitchfork parade, but Lemmy still seems to outdo. The "trying to stay relevant comment" is honestly hilarious. Sure, the richest company with more than 50% of the smartphone market, that basically feeds design to the rest of the industry is trying to stay relevant.
And another thing worth addressing, It's probably 50/50 whether the EU is forcing them to USB-C, or just providing cover for them to move to USB-C. Modern Apple (after 1997) rarely has used proprietary standards for cables/connectors, and when they have it's pretty obviously because there isn't a better option, or more likely, there isn't an option that is suited to their purpose. Apple is/was largely the reason we're even talking about USB, being one of the first to really adopt it. Then the dock connector for iPods, which is probably the most major example of them using a proprietary connector. If you read that link (just wiki) you'll see that the dock connector did things that no other standard connector did at the time, and it did it in a form factor that would work with iPods. Fast forward 10 years and Apple eats shit in the press for changing to Lightning, which pre-dated USB-C and has obvious advantages over one of the worst computer connectors in modern history - micro-USB. Apple contributed significantly to the USB-C spec, which includes many of the advantages that Lightning had first, built off of the work they did with Intel in creating another standard, Thunderbolt.
And then on to today, where Apple is "forced" to use USB-C. Again, in 2016, Apple moved all of their high end laptops to exclusively USB-C, for which they would again be pilloried. People are still pissed those laptops dropped USB-A and MagSafe in favor of trying to drive adoption of USB-C and a one-connector-rules-them-all world. They also moved their Pro iPads over to C in 2018. Basically, Apple started moving its high-end, less price conscious customers to C long before legislation was a gleam in anyone's eye. Their cheaper products (base model iPads) and mass-consumer products (iPhones) they moved much slower on, and even then there were a slate of "Apple keeps changing connectors all of the time!" (twice in 20 years) outrage-bait articles.
Yes, Apple was "forced" to use the connector they created the first design references for (Lightning/Thunderbolt, and to a lesser extend Mini-DisplayPort) and then helped design, then moved to before most, in a bid to stay "relevant" in a field they already dominate.
Also worth noting that Apple was a main driver of adoption of USB-A, and took heat when they converted iMacs to it over PS/2, far before most PC vendors did.
This alone, the amount of negative press they garnered, meant that there was likely no way Apple was going to move iPhones off of Lightning for 10 years.