I don't play jazz, I rarely go above E on the G string, I don't get asked to solo, I use open strings whenever possible, and I certainly didn't spend 35 years listening to a drone ...
... but I've never had complaints about my intonation on upright or fretless whether lined or unlined except when I already knew I had missed the note.
Like was said before, the OP will have to choose; but it doesn't take 35 years to learn some competence on a fretless, lined or unlined.