Touring I stick with tried and reliable tubes in steel bead wire tires .. IDK what you mean by unbeaded ...
Even the folding tires have a bead , its Kevlar, a synthetic with steel like tensile strength .
only AFAIK bead less tires are Glued to the rim. Tubular or 'Sew-ups' , the pro style racers use those.
Kevlar beaded tires are fine for the 3rd Spare
but last tour in my 50th year I brought another steel bead tire..
pulling the sides closer together makes the tire drape nicely over the rear panniers loaded on top of them .
I went opposite the younger rider's trends , did not prioritize light tires, used thorn resistant tubes .
10 month tour , no puncture flats 3rd tire came in to replace a sidewall rupture, tube bulged out but did not burst