The single downside being you can get signals for SIGWINCH, while the (legacy) xterm escape sequence requires polling.
I wrote a proposal[0] to have terminals send these updates in-band, instead of requiring polling a-la xterm. So far, foot, ghostty, iterm2, and kitty have implemented this feature on the terminal side. Neovim, notably, also supports this on the client side.
This stuff sucks because if the application forgets to turn it back off, the terminal pukes random control characters into your shell every time the window is resized.
I wrote a proposal[0] to have terminals send these updates in-band, instead of requiring polling a-la xterm. So far, foot, ghostty, iterm2, and kitty have implemented this feature on the terminal side. Neovim, notably, also supports this on the client side.
[0]: https://gist.github.com/rockorager/e695fb2924d36b2bcf1fff4a3...