Expect a wave of fingers cut off and eyes picked together with a stolen phone? Or kidnappings more likely?
Is there an unofficial Graphene OS ROM for S23? Because if there isn’t and you want to try it, the Pixel remains your only choice. Have you had a look at Zenfone (8/9/10)? When my S9 comes to its EOL, one of those will most likely be my choice. (I won’t lie, I prefer to have the 3.5mm jack on my phone!)
https://f-droid.org/en/packages/org.dslul.openboard.inputmethod.latin/