I use Nova Launcher for my home screen. The icon pack is "Lines Free," by Nate Wren Design.
Back in the bad old days of Windows 95 I used to make my own icons for everything using Microangelo but these days I can't be bothered. The same author has various other icon packs, some of them minimalist, some of them not.
To be honest, the drawer is only there for the once-in-a-blue-moon time I need to run some obscure thing I hardly ever use. What's on that desktop is basically all I ever use my phone for. I've got things arranged roughly by frequency of use to thumb distance.
I meant more in general rather than your's specifically. Your style is completely fine. Mine is similar except my outline icons are colored and I have a list instead of a drawer. So you got good taste lol
Be super keen when app makers can actually be bothered to implement Android adaptive icons (so that when you enable themes their icons automatically adapt)
It's pretty dogshit that these apps aren't forced to provide an adaptive icon considering I'm sure most of them just refuse because of "our brand identity" 😒
If you long press on the home screen and select "wallpapers and style" you should get this UI where you can select themed icons. From memory it's an Android 13 specific option.
Why do you choose to have no color? It's like if a person who has two functional hands decide he was only gonna use one of them for a task that objectively would be done faster and better using two.