Car starts up / revs / shifts like normal with no engine light issues but there's no response when pressing on the gas on any gear (reverse through drive/sport/low).

Car wasn't driven for about 3 months and mostly just had to deal with battery issue / recharging the battery, just came back from 3+ hour drive the other day. Is my CVT done for?

Honda fit 2015 Automatic
120k miles
CVT fluid changed last year at 114k miles

 

I'd lean more towards electrical related or possible clogged ball circuit/solenoid (if your CVT has hydraulic circuitry - pretty sure they do) considering the seeming sudden onset of the issue. Possibly voltage related also @ TCM. Generally they'll judder before dumping out with the CVTs, you'd know.

Get a proper diag. and look for codes, torque values, line/circuit pressures in TCM. Could be a ground too.