Adobe, you've known about this for years... Loudness Radar in the Audio Track Mixer under the "Special" category dropdown list is still missing on silicon chip Macs (M1 here) -- only Loudness Meter is available.
Now, the workaround that we've been using is no longer an option either in Premiere 2024, which was to launch Premiere using Rosetta. (Right click Premiere Pro, Get Info, Open using Rosetta.) So I have no good way to monitor LUFs in-app at the moment.
Please make this a priority in an upcoming patch or fix for Premiere 2025. Thank you.