How do I jump back to the exact cursor position from my last Vim session?
`0
Vim automatically saves your cursor position when you exit, storing it as the 0 mark in the viminfo file (or shada file in Neovim).
Tag: viminfo
How do I reopen Vim and jump directly to where I was editing last time?
'0
Pressing '0 in normal mode jumps to the exact cursor position in the most recently edited file, even after closing and reopening Vim.
How do I save and restore macros across Vim sessions?
:wviminfo / :rviminfo
Vim can persist register contents (including macros) across sessions using viminfo (Vim) or shada (Neovim).