I hear where you’re coming from but it’s really not required.
What solo content is there which you need to gear optimally for?
Do you die doing anything solo which you couldn’t attribute to a mistake?
They’ve made open world content pretty easy compared to what it used to be, apart from the odd elite rare there’s nothing I’ve died to. Even levelling deaths are rare, when they’ve happened it’s because I’ve pulled too much or someone has dragged other mobs over me.
There’s a chance the Timewalking Mage Tower could benefit from something but depending on which challenge it is I’ll choose ST or M+ and run with it. If it’s not really clear which to use I’ll have a think about where I’m falling short and tweak my gear or talents. I can’t remember them all but I don’t think there was anything where small tweaks will make enough difference to win.
The powers you get in Torghast make more difference than tweaking your gear ever will.
As for the PvP thing, that’s a completely different problem which I’ve written about elsewhere on this forum.
All the gear recommendations from this site come from simulations, the simulations are done against a script which mimics a generic boss encounter or part of a M+ dungeon.
If you make a script for a PvP encounter you can simulate it, change your gear and simulate it again.
I’m sure someone will help with the scripting format if you get stuck. I’m not that good at it but I’ve managed to tweak a few things from a default script, that way I didn’t have to start from nothing.