Here's his Insta announcement: https://www.instagram.com/postmalone/p/DCjp14mRn6G/?img_index=2. Says "Indio, CA" on the days of Coachella. I'm betting Post has to wait on announcing his European run of festivals until after the Coachella announcement.
Post Malone just announced his US tour today, ends July 1, so plenty of time to get over to Europe. He is also expected to announce a Coachella headlining slot, too. I bet that's why Sziget had to postpone the announcement, Coachella probably made Post do that. Still, having a proper Coachella headliner speaks well for Sziget. Hope @Sziget2025_Leaks is right, Post would be a big grab this year. https://pitchfork.com/news/post-malone-seems-to-leak-news-of-coachella-appearance-with-2025-tour-announcement/
For glasto at least. But no updates for Coachella. Thus why I dont have full confidence Fred is still in even with the re assurance by the industry. Its so last minute that theyre going with what they have and Goldenvoice doesnt have an issue with it til it drops and he is either in or out. But if he is performing at Coachella then I think something else is afoot about him backing out of Glasto.