OP. FWIW in my 2025 IONIQ 5 Limited which has the updated Infotainment system (ccNC) introduced with the IONIQ 5 mid-life refresh, when I use an alternative map e.g. Apple Maps via CarPlay for routing, it displays in color in the HUD similarly to native Nav (but IMO, much better), so Hyundai has made recent progress. I do not use Google Maps or Waze within CarPlay, or have access to any Android devices, so don't know how they may operate. Additionally, Apple Music is thoroughly integrated throughout Hyundai's native Infotainment beyond my expectation, with even a brief optional color display in the HUD of the album cover and album/track info when a new track begins (even if I'm using native Nav at the same time my Apple Music is playing.)
Hyundai has not however, taken the next step integrating EV-specific info back into CarPlay like SoC, speed, etc as Porsche and a couple others have in the past few months. I'm not holding my breath, but remain hopeful this is still coming in a future update to my new ccNC system, since it appears Hyundai has already done a great job integrating the rest of CarPlay into their Infotainment, it would be a shame to not go the rest of the way. Time will tell.
I've read elsewhere that Hyundai officially said last year they are integrating more Google maps info into their ccNC-based Nav yet this year. As to how far that implementation goes or not, I don't think there are many specifics. Unfortunately, from past experience with other brands, I would not expect major changes to older Gen5W Infotainment systems like in your 2023, but perhaps we'll be surprised.
