I initially had this same concern too about migrating from Ubuntu as well, but for any Debian based distro those same commands are going to be almost exactly the same, and really the main differences are what comes default and package versions.
How Debian feeds into downstream distros is something that Linux novices might not know, but I think that the differences aren't as intimidating as they might seem.
It's called The Universal OS for a reason, and I think if people give themselves enough credit for using Linux in the first place they would be surprised at how capable in using other distros and they can be and how much the skills transfer over.
I think part of that is because if you're used to using Windows you get a sense of learned helplessness because you're taught you're not worthy of learning how the OS works, so if the first distro people use is Ubuntu that same feeling will carry over, and you tell yourself "this is the only Linux I'm capable of using". Also when you've only ever used one distro having dozens of different options makes it seem like every one is radically different, despite having similar conventions and using the same code within distro families.
So never be afraid to "fuck around and find out" and see what else is out there, if you can use Ubuntu you're capable of using many other distros. Ubuntu is geared for enterprise deployments and cloud VMs nowadays, instead of regular people just dipping their toes into Linux like it used to be. So its status as the default user friendliest distro isn't valid anymore.
You can also get the "just works" experience from other distros, and in fact maybe more so because of all the issues with snap based applications that Canonical forces on you that add complexity, makes troubleshooting more difficult and creates a much worse overall user experience.
How Debian feeds into downstream distros is something that Linux novices might not know, but I think that the differences aren't as intimidating as they might seem.
It's called The Universal OS for a reason, and I think if people give themselves enough credit for using Linux in the first place they would be surprised at how capable in using other distros and they can be and how much the skills transfer over.
I think part of that is because if you're used to using Windows you get a sense of learned helplessness because you're taught you're not worthy of learning how the OS works, so if the first distro people use is Ubuntu that same feeling will carry over, and you tell yourself "this is the only Linux I'm capable of using". Also when you've only ever used one distro having dozens of different options makes it seem like every one is radically different, despite having similar conventions and using the same code within distro families.
So never be afraid to "fuck around and find out" and see what else is out there, if you can use Ubuntu you're capable of using many other distros. Ubuntu is geared for enterprise deployments and cloud VMs nowadays, instead of regular people just dipping their toes into Linux like it used to be. So its status as the default user friendliest distro isn't valid anymore.
You can also get the "just works" experience from other distros, and in fact maybe more so because of all the issues with snap based applications that Canonical forces on you that add complexity, makes troubleshooting more difficult and creates a much worse overall user experience.