I don’t think it’s too much as long as you aren’t in danger of overuse injuries.
Have you seen the Noa Kageyama interviews in MiM? He has some interesting things to say about practice and effective practice. It’s a really good watch.
I’m sure routines vary but it’s good to hear what everyone does.
Right now I have spaced repetition flash cards to help memorize keys and modes and some stuff like all the major and minor triads and inversion shapes. I do that daily, adding in as I need to learn more. This only takes around 5 minutes, plus any time to make new flash cards.
Then I do about 15 minutes worth of 1234 exercises up and down the fretboard. Each day I do a different fingering, there are 24 in total (1234, 1243, 1324,1342, etc). With metronome at slow, moderate, and too fast speeds.
Then I choose a single note for the day (a new one each day) and review all of that note’s spots on the fretboard. And practice triads off those notes. I do this for about 15 minutes.
Then I run a basic box scale on that note and run through each mode with that note as the tonic. This is mostly to get familiar with the sound of each mode. But I also make sure to name each note as I go through it, and rely less on the memorization of the pattern. I spend about 5 minutes on each mode.
Next I work on a lick from Guitar Aerobics, and then a rhythm exercise from Rhythm 365. About 15 minutes each there.
Then I do some exercises from CtC. Right now I like the Ardeshir Farah 6s and 8s. I try and focus on speed while maintaining good tone while working on my primary motion. Again another 15 minutes.
After that if I still have time I tool around with a piece. Right now I’m learning Slash’s Obsession Confession.
My practice time varies, but I always try and do the fretboard work and flash cards each day. Right now I range about 1 - 3 hours a day.