That was the situation in 2022 and early 2023.
Since late 2023, ODROID-M1 is supported by mainline u-boot (odroid-m1-rk3568 target) and you can also use a mainline kernel (6.4 or later) which provides working USB 3.0.
Since late 2023, ODROID-M1 is supported by mainline u-boot (odroid-m1-rk3568 target) and you can also use a mainline kernel (6.4 or later) which provides working USB 3.0.
I think VPU (video encode/decode) support is still partial and NPU (AI acceleration) requires an out of tree driver (rknpu2).