I'm in the 'leave the print alone' camp too. Do you do anything different for very large prints?
No i do this with all prints.
When i walk in a room i want to see the print not reflections or a frame attracting my eye first.
The timber frame blends in seamlessly with the white of the sheet and wall integrating the artwork more seamlessly into its environment, the print has a pop and its the first thing that you see, you don't get distracted with a bold or intimidating frame.
60x80cm in cases but mostly 1x1.2 or 1.4 meter is the size.
With panoramic size of 28cm x184cm that comes out to 2 meters after framing i use no mat board to preserve the panoramic look, paper hinges at the top, a 4mm insert around the edge to hold the glass off the print hence the same 40x35mm white timber profile.
There are two ways I go, full archival if tits important.
For nice casual enjoyable small stuff i like i use IKEA frames which are the way to go.
My girlfriend likes no frames and has prints glued down onto a thin block of foam. I am in ways partial to that as well in some cases.
I dislike a wall where the frame dominates, the frame should be a subtle accessory, neutral simple.
My environment is i like everything white, walls floors ceilings windows doors skirting boards and architraves, it demonstrates space and light with neutrality, a bit like a clean blank canvas, then i allow the furnishings and accessories to add contrast colour interest, you then always see the print/artwork never just the frame at first, i like lots of glass, sun, light, green foliage and sky visible from every position, luckily we live in a warm beach like environment.
Only an opinion