My experience trying to find a spec I can play without pain and few options for people in similar situation.
With every expansion its getting harder to find something I can play, classes are getting faster and ability bloated hurting my hands. Ive spent at least a week trying to find something, but seems that most roles are impossible without pain and WoW is the only game doing this to me. In WotLK i can play about any class, here im trying to find a single spec. At this point it seems that this will be my last wow expansion if they dont change skill and talent system to something i can actually use.
First - pain is caused by having to spam too fast or doing more complex constant movements especially with modifiers. Rarely pressing modifiers is fine, but at certain activity level pain sets in and only gets worse. Seeing how issues i had in WotLK and now in WotLK classic are same I dont think its my hand thats getting worse.
Comfortable keybinds - 1~5 qerf, and even then it gets painful if i have to use all of them every few seconds.
6, t, g, shift + 1~5 qerf, for abilities that you generally dont use often.
100$ mmo mouse for a game i play few months a year and is bad for other games isnt a good option
id rather not use those macros that are often suggested as i do want to play the class
hold to cast was an awesome addition and helps a lot when it works.
I havent played all specs, but at this point i have tested most. DF has made it worse as the new talent tree punishes not taking active abilities and they are either mandatory or they are so much more powerful than passive options that passive isnt an option.
Tanks have always been on the fast side, even on wotlk paladin causes issues on longer chain runs and I wouldnt want to tank a raid on one. In Shadowlands paladin was torture, but I did play Vengeance for some time, at some points it got a bit uncomfortable but was manageable, in the end i decided not to tank anymore.
Havent healed before, but because of my hand issues i tried it in WotLK and it seemed nice and relaxing, but in DF healing seems to be much more complicated and expected to help with damage, so too many keybinds(dps+heal) = hand pain.
Melee dps are either too fast or too many binds that combined with constant movement kills my hands really fast, havoc and fury is a pain, from reading outlaw and ww seems to be as bad if not worse, ret and arms have too many abilities in rotation to find comfortable keybinds for all of them.
That leaves only ranged dps, but most have same issue of bloated rotations that simply have too many active abilities to bind all on keys i can use for longer time without hand issues. for example MM, often recommended for slower pace, at 60 is fine, but at 70 you have 3 mandatory active abilities steel trap, chakram and explosive, that are used often enough to need comfortable keybinds, but there are no more easily accessible ones.
In the end the only classes I can play seem to be frost mage and devastation, will test arcane, though it seems to have a few too many abilities.
I understand some people want to play fast and complex specs and Blizzard wants to add more abilities, but maybe add new specs for those abilities or give decent passive options for those who cant play them.
TL;DR - add decent passive alternatives to skills and make slower specs.