@johnyork First off, if you are happy with your progress and still progressing, then you don't need to change anything.
Now if you feel like you have plateaued or your progress is very slow then it's a good idea to re evaluate your programming.
The best full body programming is one day on and one day off. This gives you 3.5 days a week. I am doing 3 days a week atm, because in India gyms are closed on Sunday. Sometimes I go Monday_morning, Wed_morning, Fri_morning and Sat_night, that is 4 sessions in a week. I keep the 4th session low in intensity, because I am not fully recovered from Fri_morning session.
I don't do deadlift either, it is an Olympic lift for strength training. RDL is far better for muscle growth. You have to decide if your glutes are lacking or quads. I personally do two light sets of barbell RDL before 3-4 sets of squat, this warms up my glutes for squat. Squat hits your hams, glutes and quads all, so you don't need much RDL. RDL is good for overall posterior chain development.
For full body training, go with incline press, Lat pull down and squat as your main movements. 3-4 hard sets of each exercise in one session. Sprinkle in arms, core, RDL, calves or other lagging parts. E.g. I do flared elbow cable pulls before bench press to active scapula retraction.
You try 3.5 days per week full body routine for 2-3 weeks. Keep every session 45mins to 1 hour. Superset everything, otherwise take longer rest and go for 1.25 hour session. If you can recover fully from one session in 24hours, i.e. if you don't feel sore/tired(CNS) on Tuesday after Monday session, then that implies you have reached Intermediate level. If you are sure, you are intermediate level then go for upper lower split (U - L - Rest - U - L - Rest).
With regards to strength, fully body should be superior for strength, because frequency is higher, e.g. the Bulgarian full body 6 days a week is used by Olympic lifters. In terms of muscle gain, make sure your time under tension for one set is around 45 seconds. Although, total volume is the main factor for hypertrophy, i.e. you can do 6 sets of 6 reps and 3 sets of 12 reps to achieve similar results, but the reason for 45 secs is you wanna spend around 4 seconds for on rep. 1 sec concentric, 0.5s hold, 2sec eccentric and 0.5 sec hold. Controlled eccentrics build more muscle -- more muscle damage + 70% extra strength.
My motto is, "do the least amount of work to get maximum results". If you lift relatively lighter weight and achieve similar muscle growth, that's better for your joint and longevity(injury risk).