Many rpg's nowadays heavily suggest a session 0 for the whole group so they can make characters together. D&D and adjacent games like PF should do the same. Neither game really suits the solo adventurer so it's best to make sure you fir in well with the rest of the group. While you can (usually) make any group dynamic work, you'll be more effective if you take into account what everyone can contribute rather than just yourself. Everyone wants to make a solo god even though characters are never played that way.
I agree.
In context of DPR and other factors, every so often I make some comparisons of the actual characters in the party's at-will DPR and virtual at-will DPR (including things like hex), and also find a way to include estimates for things like battle master maneuvers (since we have a battle master). For both the at-will and virtual at-will I have two numbers, one for single target and one for multi target (since green-flame blade is also present).
I do this primarily because of my home brew warrior-mage class being present, but it's also very useful to see if the relative power if the characters is balanced. It is useful because I am intimately familiar with what all these characters can and actually do do in play. DPR is only one factor, but it's a factor I can get a good statistical view of fur comparison purposes.
I have to do this because I not only have a home brew class but occasionally implement new house rules (one of the more recent ones in additional off-hand attacks when dual wielding with Extra Attack).
I run the numbers from current all the way up to where I imagine it might be at 20th.
Fortunately, the relative DPR in the party has ended up about where it should be balanced with other party capabilities. The dual-wielding battle master fighter is the melee king with the pact of the blade warlock and swashbuckler rogue pretty close (rogue slightly edging ahead at most levels), the warrior-mage next, though at some levels at bit ahead of the warlock or rogue if we assumed they could hit 2 targets with green-flame blade every round, and the lore bard a distant 5th with their cantrip. (Other than the bard, who is our dedicated caster, healer, and skills and knowledge character, everyone else is primarily melee.)