we have a terra cotta tile floor in a small back bathroom that I recently discovered has never been sealed

I would like to seal the tiles, just so they don't absorb absolutely everything that might spill their way....
what is the preferred sealant or wax? I recall decades ago that the main terra cotta tile floor was hand buffed with I believe a wax? the tiles don't look fake or shiny. They have a warm subtle sheen. I would like to replicate that in the back bathroom, if possible.
Online, I found several sealants, but I'm concerned that most of them would be rather high gloss and plasticky.... what's the old-school route?
any suggestions?
thanks