How to make fullscreen windows appear next to the current space with "...rearrange spaces based on recent use..." disabled

I keep a lot of apps running at the same time. I keep some apps in fullscreen next to the first desktop for general usage, and some other fullscreen apps next to a second desktop for "work" stuff.

The problem is that when I put an app in fullscreen it is placed next to the last space. I know that enabling "Preferences > Mission Control > Automatically rearrange spaces based on most recent use" would make apps to be placed next to the desktop I'm in, but I chose to disable it because I don't want spaces to move.

I noticed that there's a (bad) workaround:
- keep the green fullscreen button of an app clicked until it is presented the choice for placing it in the left or the right side of the screen;
- release the mouse in order to assign the app to a side;
- click anywhere on the side of the app; the app should now be fullscreen and should be placed in the next space (not at the end).

Is there a way to keep that option disabled while at the same time be able to open apps in fullscreen directly next to the desktop I'm currently in?

Fastest way to do it today (October 21st, 2020) with macOS Catalina, is getting a custom keyboard shortcut to open it "full screen" to the left or right and select the window (this last with the mouse, there's no way to make a shortcut to it that I know, but window is big enough to not take long to select it):

1. System Preferences / Keyboard / Shortcuts / App Shortcuts
2. Click the '+' button (encircled in red in the pic):
3. On "Menu Tittle" add exactly what is inside the following quotation marks (or replace Left with Right if preferred): "Tile Window to Left of Screen".
4. Press the keyboard shortcut you want for it. As the shortcut for Full Screen is Ctrl + Command + f, I'd recommend using Ctrl + Option + Command + f as it is the full screen that we are going to use (mainly or optionally) and it is is easy to type. Click Add.

Now you can just use Ctrl + Option + Command + f and then click on the tiled window to make it a Full Screen next (right) to the desktop where you opened it.

Want to put it back to the desktop it came from? Press Ctrl + Command + f (as for full screen) and it'll be right back.

It reduces the time from 5 to 1 or 2 secs. Surely less if animations are disabled.

Still I'd rather have a direct kbd shortcut, hopefully Apple introduces it with Big Sur, but this makes it pretty usable at least.

The workaround seems to have some unnecessary length. If one holds the green button, then clicks in the app itself, it will become fullscreen right away in the next space, not at the end. It is a two step process. Just like methods like this hypothetical one: Go to view menu -> "Full screen in the next space, not the end". Also the option about rearranging the spaces was turned off in my Mac.

MacOS 10.14.5

MacBook Air 2017