I use arrangers, electric guitar, a laptop, and a tablet on various live gigs. The tablet is for backing tracks only. For the life of me, I don’t see how anyone can read lyrics and chords changes from a tablet on live gigs. I’m still into notebooks, with no apology, and with the largest font possible per page. Works for those tunes not memorized. Never had a complaint about old-fashioned notebooks. Maybe notebooks are retro these days.