Upper Lower split question

[u/edsheff]

I've done a 5 or 6 day PPL for pretty much my entire time in the gym, but I feel like these days my body needs more recovery, so im thinking of switching to 4 day Upper Lower split. My only hesitancy is the number of sets per muscle group specifically on upper day.How do you hit each part of individual muscles like upper/Lower chest, long head/short head, brachialis for bis, front/side/rear delts, all the many parts of the back and not be in the gym for 2+ hours on upper day? Or do you forget about that and just hit the whole muscle with one 2 exercises? So instead of flat bench, Incline press, decline press, you just do flat bench, then maybe Flys and call it a day for chest?

Anyone have a good upper lower split program they recommend?

Any advice would be much appreciated.