Question about EcoFlow Delta Max 2000

I bought the power station "EcoFlow Delta Max 2000 (2016 Wh, 21.50 kg)" from Digitec for stationary use in Switzerland, and the non-sealed AC output was "in accordance with Swiss standards". Together with the power station, I also bought the travel adapter (Brennenstuhl) listed by Digitec as an accessory, without which it is not possible to plug in a standard Swiss household plug with earth (T13) into the AC output mentioned. Since the travel adapter can be plugged into the mentioned (symmetrical) Schuko output of the power station in two ways (not protected against polarity reversal), I checked the individual sockets of the plugged-in travel adapter with the phase tester (model "screwdriver") after switching on the power station and the AC output and found that the phase tester lit up both at the load socket and at the neutral socket. (Accordingly, the result did not change after the travel adapter was plugged in the other way round). I also measured the voltage between the two sockets with the voltmeter, which is OK. Before I now connect a device to the power station, I would like to know to what extent the AC output complies with the CH standards and whether the described operation with a standard Swiss plug (T13) is safe. Specifically, I would need to know exactly which 230V appliances are not allowed to be connected to the power station for the reasons mentioned above. Thank you