Some colleges will absolutely recalculate OP’s GPA to their scale. UF and UGA, two schools on OP’s list, will do this, and their formulas are readily available online. It does behoove applicants to understand how schools will recalculate GPAs so they can see where they compare based on prior year stats.
It is also true colleges will assess the applicant in context of their HS, given whatever limitations there are (some HSs purposely obscure ranking information, as well as refuse to rate the level of rigor of an applicant’s curriculum).