Got in to my car today and the instrument cluster (gauges), radio, heater blower

Common for ignition switch. Try spraying break cleaner down the hole and turn key a few time should work

Did you check each and every fuse you could find with a tester, especially the maxi fuses under the hood? If not you have not checked the fuses properly! I have fixed many problems that way over the many years i have been doing auto repair, and on every one of them the fuses usually had been checked already, only to find one that was blown while testing.