Yes, I have made a sub 2hr connection T3 —> T5 (and vv) but it’s stressful/painful. Slightest holdup and you can be stuck - remembers the departing gate will close ahead of the listed departure time too. Often short hauls are at the A gates at either end (below the lounges), but not always so that adds time - and you wont know that until arrival (although you may be able to look at historic/daily gates to look for a trend).
When’s the next option to GVA? May pay to build a buffer, noting if it’s on one ticket, they’ll move you forward if you dont make it, but that assumes there are seats available.
If there’s a eg. 4hr connection, i’d take that.
FWIW i have ex-BCN arrival at 910 connecting to QF9 (1155) upcoming (ie. T5 —> T3) - would have liked more but it’s the only ex-BCN option that day otherwise I’d have to go to LHR the night before.