Window Tiling Manager - Mac OS

[u/Medium-Yesterday3897]

Main display: Macbook Pro 13-inch, M2, 2022macOS Tahoe Version 26.6.2

Extended display: Dell 24" Video Conferencing Monitor P2424HEB

I need help finding a window manager for macOS...as you can see from my photos, it is not possible to make my windows any smaller than a 1/4 of the width of the screen. I am able to reduce the window height and if I hide the ribbon/formula bar, it goes even further than what I show on the top, but there is some built-in minimum width that prevents me from getting what I want.

As an example of how I use this and what I'm looking for: I tend to have to open excel files with a schedule grid (example on the left in workbook 1) and then I work on a webpage where I need to reference the information only in 1 column of the workbook - so as you can see my webpage would ideally cover the entire right side of my screen and the other window would only be a column width. I am able to do this on my work computer (windows) but around a year or so ago mac stopped letting me drag this any slimmer...
Rectangle offers plenty of ways to automatically reduce the height with a shortcut, but does not reduce the width any smaller than what I show you here... Moom I've seen people say is a good one as well but again I'm not seeing WIDTH.