@manlycoffee
GitHub is the only one who changes it to main and really in my expiernce no one every starts the repo on github itself unless they are a amateur without much programming expiernce. Most use the git client and it still uses master. So the vast majority of repos i see are still on master, even new ones.
I myself always go with master because its the git default therefore the closest thing I can see to a standard, so i will make sure as a rule all repos in my org must be "master" until git changes it as the standard and then we will follow whatever the industry standard is according to git tool.