I saw the Solo heading towards St Ives earlier in the morning and I haven't seen such a full bus for months.
I note the open toppers have no social distancing in the open top section which I reckon makes their capacity around 55.
At Penzance bus station FK timetables in the standard panel format are on display rather than the usual full poster, while for TfC there's no indication of its existence except for an outdated Covid-19 timetable notice and departures on the real time screen. The NT information Office remains closed (why?) which means there's no way of obtaining FK timetables.
The bus station toilets are open, but unhelpfully at a time when many people have stopped carrying cash, are charging 20p with coins only. The railway station toilets are out of bounds because there are staff at the station entrance preventing people entering (unless, presumably, you're catching a train, which GWR doesn't want you to do anyway).