This would also fit nicely:

Generic
shared by/typical of, or relating to/genred a whole group of similar things relying upon or sharing a whole group

of similar things,

rather than to any particular thing: Source: Cambridge Dictionary of English.

While universal is probably the best answer I would like to add in to the mix Ubiquitous, globally applicable or present.

I am reading a very different post in another group when I see the word irru00e9fragable (in French, which is irrefragable in English) and depending on my (lots of) dictionnaries, I believe it is the answer.

Situational

This formula is situational and may vary.

As a foreigner, I thought of passe-partout according to Collins Dictionary : that which

passes or allows passage everywhere. The problem

is that you want a positive word but you can use a negative word as well. What doesn’t make it “pas passe-partout”, which would be a good expression, especially in French. But more something like inapplicable or non-applicable.

Webster’s New World College Dictionary, 3rd Edition. Copyright 2002 by Houghton Mifflin Harcourt. 2010. All rights reserved.

General, especially in mathematics: involving,

relating to, or applicable to every member of a class, kind, or group the

general equation of a straight line One

option you have is to say what the equation is rather than what it isn’t, such as: “This equation applies only to a special case.” “The

truth is you can make it work!”

Does a formula solve all the problems imaginable? What’s the most urgent problem that you have: technology, a panacea for all problems?

1. How can we cure anyone with

AIDS and/or hypertension https://dictionary.cambridge.edu.gc.ca/? org/dictionary/English/panacea.

Standard (and general)

or ubiquitous.

All-purpose

from The American Heritageu00ae Dictionary of the English Language, 4th Edition

adj. Has many purposes or uses: An all-purpose thread.

Article removed from Wikimedia Commons, Creative

Commons Attribution/Share-Alike License adj. for all purposes; general-purpose

from the GNU version of the Cooperative International Dictionary of English

adj. (CIDE). Not limited in use or function.

From WordNet 3. Copyright 2006 Princeton University.

adj. + adj. not limited in use or function.

Silver Bullet

: something — something that — acts as a magical weapon; especially : one that instantly solves

a long-standing problem; To say you “need something” is to say nothing will magically solve the problem, like a Universal Formula would.