ATTENTION ERROR IN THE ARTICLE DETAILS!!!!
This article describes an XQ-CC54 (according to the manufacturing number). However, this model is not a 2x NanoSIM device as also stated in this article, but a 1x NanoSIM with 1x eSIM.
After 2 hours of doing all the confugurations and even putting on the screen film, I realised that no two NanoSIMs fit in. I noticed that there are apparently two different models...XQ-CC72 and XQ-CC54 (the difference being the DualSIM principles).
See also:
https://helpguide.sony.net/mobile/xperia-10m4/v1/de/contents/TP1000724302.html
Very annoying for me now, a lot of hassle for exactly what I wanted to avoid...an eSIM
Since the portfolio manager was a bit asleep when attaching the details and not a little in detail!!!!
I can also confirm this. I tried to use my second international SIM... without success. It's not so bad now, but the description must be adapted as soon as possible.