For anyone that hates resizing windows in general on a mac, I've found the combination of using a Hyper Key[1] + Moom[2] to be amazingly ergonomic.

Here's a quick demo[3] of what this looks like on my machine.

[1] https://brettterpstra.com/2017/06/15/a-hyper-key-with-karabi...

[2] https://manytricks.com/moom/

[3] https://my.supernotes.app/share/wire+unaware+noble+meadow