I switched a few months ago, MAC since 2004. No computer expert, but I tend to always find my way around.
I hear you, different distros, packaging managers, desktop environments, it's confusing and feels uneasy at start. But with the help of liveUSB, exploring some distros, I got over that. This all won't take long, apps to make a bootable USB stick and every linux distro, these are easy to find online. Exploring and trying out ain't more than a day or 2. Nothing to loose. If you don't like it at all, fine, at least you know. No one else can answer that.
I tried Ubuntu and Manjaro (both linux distributions) and 3 desktop environments (KDE, GNOME and XFCE). One stood out for me, Manjaro KDE (XFCE comes second). so I started to read, more specifically. There is definitely some learning curve, you got to go step by step, but I am glad I did. Now I stick with my choice, no need to start the journey all over again.
I understand how you feel about the terminal, but you grow into it, by now I am familiar with only a dozen of commands, and for me, that's all I need. When possible, I prefer the terminal.
Then, replacing software. This part I have enjoyed most so far. Stunning and refreshing to see how many smart people are involved here, spend their free time. This has truly changed my mindset.
Also, if linux turns out what you are looking for, choose hardware wisely, do some research before you buy. Some computer brands seem very well supported though.
Btw, since you asked, just sharing my (limited) experience. No push here. Windows, MacOS, each is fine and serves its purpose.