Comparing this year's article with last year's, it looks like initial support is in a better state, especially with display and wireless support.
| Feature/SoC | SM8550 (8 Gen 2) | SM8650 (8 Gen 3) |
|---|---|---|
| Qualcomm Kryo CPUs | ✓ (with DVFS and Power Control support) | ✓ (including DVFS and Power Management) |
| System | Clocks, Power controllers, PMICs | Clocks, Power controllers, PMICs |
| Storage interfaces | UFS, SDXC | UFS 4.0, SDXC |
| High-Speed Peripherals | PCIe Gen3 and Gen4, USB SuperSpeed (5Gbps) | PCIe Gen3 and Gen4, USB Version 3.1 Gen 2, USB-C PD |
| Low-Speed I/O | I2C, SPI | I2C, SPI, RTC, Buttons, LEDs |
| Qualcomm Hexagon Processor Subsystems | Audio, Sensors, Compute, Modem | Audio, Sensors, Compute, Modem |
| Display | - | Mobile Display Subsystem + DSI Engine, Touch Controller |
| Wireless | - | WCN7850 Bluetooth |
Of course, wireless and display support could be added later. In that case, it should be somewhere in these logs.