I feel like disabling editing on mobile entirely might be going too far.
It's obviously your project, so you're free to do whatever you want, but if you prefer focusing on read only mode on phones, maybe you could consider a full screen/toggle mode instead (not split whatsoever - neither vertical nor horizontal), that let's you select editing or viewing mode - and it defaults to off / viewing?
It's obviously your project, so you're free to do whatever you want, but if you prefer focusing on read only mode on phones, maybe you could consider a full screen/toggle mode instead (not split whatsoever - neither vertical nor horizontal), that let's you select editing or viewing mode - and it defaults to off / viewing?