I do know the basics of chord construction but it's still way easier to think through it on a piano because keys are all linear whereas with guitar strings you have to translate across strings with varying relationships. Not saying it's impossible it just takes more work to internalize that on guitar than piano. And I'm not there on guitar.
I'm right there with you - I have lots of experience playing songs on piano with just lyrics + chords, and I use all kinds of inverted chords without even thinking about it. "Reading" the keyboard is much easier than reading the fretboard.
One other thing that makes it harder on guitar is that the chords that are easy to play are often various inversions, so your "A" chord might actually be a first or second inversion. I'm still just learning movable shapes on the guitar, and getting the fingerings right is tricky as things grow and shrink moving up and down the fretboard, something that also isn't a problem with keyboards.
Check out the chord Melody guitar course at improviseforreal.com
It Will make these relations very clear and help your playing a lot. Source: happy customer myself
