I just moved from Windows to Linux (currently, PopOS) this year around.
You can try out beginner friendly distributions like PopOS, Linux Mint, ZorinOS which are Ubuntu-Debian based or Fedora. Like others have mentioned, applications made on Linux are expected to be cross-compatible with all distributions so your choice will mainly come down to what desktop environment you like as there are many with different feel to the user experience.
To know what works for you try these out in a VM if possible before biting the bullet so you know what all packages are present in Linux, and what all of your usecase will need to be managed through WINE/Proton compatibility layers.
You would want to avoid Ubuntu, and installing anything through Snap or PPA repositories if it ever comes up in your searches.
Is the Asus Zenfone available in your region ? If yes, its a pretty compact and feature rich phone.