From what I can tell, 1Password 7 runs native on Apple Silicon.

"file /Applications/1Password\ 7.app/Contents/MacOS/1Password\ 7" says "Mach-O universal binary with 2 architectures: [x86_64:Mach-O 64-bit executable x86_64 - Mach-O 64-bit executable x86_64] [arm64]"

Activity Monitor says that all 1Password things are of Kind "Apple" (not "Intel").