We did a spontaneous trip to Venice in July 2020 and were very lucky that Doriana replied very quickly to our request and that the room was free for that week.
She and her husband welcomed us at their flat which is located maybe 3 minutes from the Rialto Bridge and generally very close to everything else.
They respect your privacy and you have your own bathroom, so you won't notice much difference to a private apartement.
If you wish they love to help you out with any tips for Venice.
Although times are difficult for tourism at the moment, Doriana was very thoughtful and people in Venice also respect social distancing in public as much as possible.
The stores all expect you to sanitize your hands before entering and everybody wears a mask.
So we definitely want to recommend Doriana and her room, it was perfect for our stay here in Venice!