I am having the same issues with my newest printer. It has an annoying "filter" that seems to want to use the printer page and tray options that it thinks you need. Not as bad in Windows, but I rarely use anything other than Ubuntu for my documents and poster work. If you have an image in the document, it tries to force you to use the photo paper in the back tray instead of the plain paper in the lower trays.
One way that worked for a few weeks was to purge LibreOffice and reinstall. Another way was to go into the printer driver system and do my best to make it choose portrait as the default and only do landscape when asked for. Same with plain paper over any style of higher quality paper.
I do not know what Mac's OS options are to add and modify printers and its drivers, but Ubuntu Linux is straight foreword.
The only thing I still have not gotten to work was to use "borderless" paper sizes, within LibreOffice, in plain paper to save ink. The printer will not use borderless sizes other than photo paper. The only way I can do this is to export to PDF and cross my fingers to hope it will use portrait on a portrait orientation, instead of printing a landscape orientation sheet with a small portrait page on only half of the page - i.e. two pages on one side of the sheet of paper.
Getting two side printing within LibreOffice can add more to the challenge for that printer. I do have an older noisy printer that will work OK within LO, but not always. Of course if I do not want duplex printing with no color, I always could use the 15 year old laser printer.