I have tested the new Firmware during last day.
As I see, some known/reported bugs were really fixed, like hidden SSID for 6 GHz or parental control bug where internet restriction was not working at all, etc.
There are also new features like Wi-Fi MLO, even for guest networks.
However, a really annoying bug (which was also present in version 33570) where LAN speed -especially via Wi-Fi- is capped and unstable if at least one VPN client is active is still present.
This means, if I start e.g. a file copy (or an internal speedtest) via Wi-Fi using a 2x2 AX client the transfer speed is capped at around 800 Mbps. In this case the CPU usage of one CPU core hits 99%. Starting a parallel file copy using another client will be fatal.
Without any VPN clients active, the system is more stable, and the transfer speeds are far better (1,5-2 Gbps using the same setup).
At first I have performed a dirty flash from 33001, but after a factory reset and doing some basic (clean) setup the result is the same.
Rolling back to 33001...again.