The OSR is a RPG design movement started in the mid 00s as a direct reaction to the release and prevalence of D&D 3e/The D20 System developed by WoTC. The OSR takes inspiration from and/or seeks to recreate the original TSR era D&D in designing new systems. The OSR has two goals which may...
There's a balance to be had between opening up your system to attract 3pp and protecting your IP. There isn't a one-size-fits-all solution - that's the appeal of going with a bespoke license instead of defaulting to a singular popular one. A restrictive license will push 3pp creators away -...
RPG companies are under no obligation to release anything they design to allow anyone else to freely use it.
Open licenses of any kind should not be considered a baseline expectation. And every publisher/author should be allowed to set the terms and conditions around other people utilizing...
There is a MASSIVE amount of first party content - and it is almost all excellent. I'd start there over trying to look at 3PP stuff if you literally only have the corebooks so far.
Battlezoo makes a bunch of stuff for PF2E on Kickstarter. Latest one: https://www.kickstarter.com/projects/rollforcombat/battlezoo-bestiary-elemental-storm-for-5e-and-pathfinder
Most 3PP PF2E creators put stuff directly onto Pathfinder Infinite, they dont make big kickstarter projects.
Elemental Adept isn't supposed to be good or strong. Its not a feat 99% of spellcasters will take, nor should it be
Its a feat designed specifically and exclusively to elevate the sub-optimal, but popular playstyle of the dedicated elemental caster. It succeeds at that task well enough so...
....Which is a way the rules could have been written. Instead of clearly saying "make a ruling on what makes sense", they give a convoluted procedure that when applied literally does not work.