All engines must consume some oil by design.
Some oil must make it all the way to the top ring just to lubricate and seal it against the bore and some oil must get all the way down the valve guides for the same reason.
People who claim that their engines don't use a drop are kidding themselves.
In my book, as long as the oil level stays within the range between full and add on the dipstick for whatever OCI I've decided upon, then that would qualify as nil consumption.
Oil consumption is one of those dirty little secrets of car ownership that too many people want to pretend they don't have with their cars. Consumption is also typically low enough that owners can ignore it between trips to the quicky lube, which is what 99% of owners do since they regard their cars as no more than useful appliances.
If you have to add oil, no big thing. Just check it and add as needed.
For the record, most of the cars we've had over the past thirty years or so needed no adds between drains.