in the Deutsche Bahn Navigator app, the trip details are split into two tabs: Ticket and Itinerary. One would assume that you're bound to what's written on the ticket, and not to any details in only present in the itinerary.
the ticket listed the following:
Gültigkeit
ICE Fahrkarte (Einfache Fahrt)
Super Sparpreis Europa
2. Klasse
1 Person [age details elided]
Von: 31.10.2023, 00:00 Uhr
Bis: 02.11.2023, 03:00 UhrVerbindung
Braunschweig - Zwolle
Zugbindung: ICE 754, 17:56 Uhr
Via:
<1080>LEHR*H*WUNS*MI*LOEH*BUEN*OS*RHEI*Bad Bentheim(Gr)<1184>Regional Train*Hengelosaying that the ticket is valid during a 2-day period starting at midnight, on journeys from Braunschweig (exact station unspecified) to Zwolle, as long as you make use of the ICE 754 leaving at 17:56 (which is the leg of the trip from Hannover to Osnabrück, and obey the routing instructions.
notably, the ticket only lists the Sammelbezeichnung (collective designation) for the stations involved (see linked PDF), thus the ticket is valid whether I start my journey as Braunschweig Hbf, or Braunschweig-Gliesmarode.