Just three hours ago I switched back to Linux after a few years on MacOS. The only thing missing was the amazing text copy tool I was using, "Rex" [1]. What a coincidence to see this post on the front page a few hours later!
Side note, what a breath of fresh air Gnome on Fedora is!
It's obviously personal opinion, but I think you made the best choice! (Gnome on Fedora). Welcome back!
It's remarkable how much more polished Gnome is from a few years ago. If you use 2FA TOTP, make sure to install Gnome Authenticator if you haven't already. If you use Aegis on Android (or a handful of other formats) it can import/export your seeds. It is downright luxurious having this on my laptop/desktop:
# If you haven't setup flathub yet
sudo flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
# Install Authenticator from flathub. Source: https://gitlab.gnome.org/World/Authenticator
sudo flatpak install flathub com.belmoussaoui.Authenticator
I'm running Monterey and have the feature, but it's only inside Preview, which means I need to either open the image in Preview or take a screenshot and then open a new image in Preview to paste the screenshot, before getting the text
Check out Textinator [0] which is an open source macOS app that watches for screenshots and automatically does text detection then copies text to clipboard. (Disclaimer: I'm the author). It works on macOS 10.15+
Side note, what a breath of fresh air Gnome on Fedora is!
[1] https://github.com/amebalabs/TRex