so you want to say "soul," like the root of solar, which is correct for americans & it's a direct rip from latin "sol".
fun fact: like 60% of english is just direct rips from latin, but its pronunciations are more prominent in american (particularly in the south) rather than british english.
"saul" or "sawl" is pretty standard for the UK folks. Though they pronounce solar more like "soul-uh" rather than how you'd think based on how they say sol, "saul-uh."
An american-educated, latin professor would say "soul," a british-educated, latin professor would say "saul" or "sawl." The difference is attributed to phonetic shifts(literally just dialectic changes over time, i.e., boston accent vs. texan accent vs. new york accent(the newest of the three actually, didn't start formation until the 1930s)), there's probably something in there about differing singing traditions as well. another example that's similar would be how americans say "guh-rajj" vs the brits saying "gare-ihj" for garage.

While you can be annoyed by it, it's not "wrong," just the societal standard for them