An update on X25 ownership... bought mine in mid 2022 and it is now exhibiting issues with outputting to the internal display making it pretty much useless as a mobile device.
I barely used it for the first couple of years but last year decided to part out my desktop PC and use the laptop as a desktop replacement (oh look, as of April 2025, hah). It's had a very very easy life and probably only seen a few hours of total gaming time, the rest of the time being used for light duties and sat on a cooling pad.
Since I started using it more frequently I've had a few BSODs and lock-ups when trying to wake the laptop from sleep. I found out from looking at the debugs that it was related to the drivers for the integrated Radeon GPU. It wasn't a huge issue, I just set the BIOS to dGPU only and haven't had much of a problem since, until the last couple of days where it's been crashing again. Came to use it last night and it'd locked up, so I power cycled the laptop and noticed that during POST the screen was flickering badly. Power cycled it again and had no output from the internal display at all.
After a bit of troubleshooting, it seems when the laptop is cold I can power it on and get an output on the display, albeit with it flickering. If I reboot the machine at this point, or allow it to boot into Windows, the screen is dead but the machine will still function. Power cycling the laptop when it has had time to warm up results in no output from the display.
I've managed to be able to use the machine by resetting the BIOS to re-enable the iGPU. After doing this it was a bit touch and go as it wasn't getting into Windows, and as I couldn't see the screen I didn't realise it was asking me to enter my Bitlocker recovery key after the BIOS reset

Now I'm back in Windows I get an output via HDMI and can see both the iGPU and dGPUs detected. If I enable the inbuilt display in Windows, it's blank. The backlight works but there is no output. I've reseated the display connector a few times to no avail.
I can force the dGPU through Control Centre, reboot the machine and I get the POST/BIOS output via HDMI but when it gets to Windows both the internal display and HDMI output refuse to display a picture. Reboot the machine, set it back to iGPU and I get no POST display at all until Windows when the external display functions normally. IIRC the 3070 output is passed via the Radeon and out via HDMI, both of which appear to be working fine at a hardware level, just something going in with the signalling to the internal screen. I suspect maybe a failing capacitor or something at component level... and I'm not sure I have the time, patience or skills to investigate.
It seems to be working ok connected to an external monitor (which is what I use it for 90% of the time) but is still very disappointing. I have never hated a laptop as much as my (old work laptop) Dell XPS 15 9570 but this Medion has certainly tested my patience at times. I guess I was expecting too much from a 'cheap' laptop. I might try and get it repaired, if I can find somebody with a circuit diagram.
Not sure I'd buy another. Pretty disappointed.