I’ve never used a digital tuner. When learning in the 90’s, I just chucked on something with a key I knew. Usually Black Sabbath
Remember the days of learning guitar solos by playing a couple of notes on a cassette then pausing it......and repeat...
The guitarists in my band use digital tuners, in their pedal boards, they spend ages clunking their feet around and still manage to get out of tune. More string bending I guess. After they’ve tuned up, I just ask them for a note, and tune from there by ear. Takes seconds.