r2d2

I would generally suggest staying away from MoCA technologies—it is unreliable and won't work with modern DOCSIS, as it uses a wider range of frequency spectrum.
It is possible to some extent to mitigate the issue by reconfiguring MoCA adapters to use a different spectrum than DOCSIS 3.1 (see: https://www.gocoax.com/post/change-moca-adapter-to-d-bnad-high-mode).
You can try it out; it might help.

However, I would still recommend getting rid of this technology. In the long term, you'll be much better off terminating the coax connection to the modem and using an Ethernet cable in your apartment. I know this may not be what you want to hear, but unfortunately, it is the best solution.

Ano, bude to fungovat. Spravovat (wifi) to budete přes mobilní aplikaci, nebo lépe aplikaci na PC s UniFi Controller. Na tom modemu nic spravovat nebudete, maximálně nějaký IP rozsah, víc tam nastavit nejde. Obecně, ten modem je velmi mizerný router a mnohem lepších výsledků člověk dosáhne, pokud si ho nechá přepnout do bridge módu a nahradí ho vlastním routerem (třeba Cloud Gateway Ultra od stejného výrobce - pak to člověk může spravovat vše dohromady v jedné aplikaci, je to docela praktické)