I'm going to say what I've said before for these types of threads.
Players on a computer and players on mobile devices should not be treated independently for gameplay.
This is because there are many players on mobile devices who could use a keyboard and mouse with their phone and many players on a computer who would simply prefer to play Minecraft on a touchscreen.
That's not even counting for players who rely on emulation to play on whatever platform they want.
The reason why I'm pointing out how players can use different types of input devices is because that is what seems to be the main concern when comparing these platforms.
The type of screen you are using can also create some differences and variability with how you play the game as laptops and desktops typically have larger screens than mobile devices although this isn't always the case especially with how convertible laptops, tablets, and foldable devices can run a variety of different platforms.
Given how much variability there can be for how players play the game on any platform, That can lead to greater issues down the road if we decide to balance gameplay depending on what platform each user is on.
There currently isn't a difference present in terms of attack damage, range, or other gameplay mechanics between platforms within major game-modes that I could gather. Survival Games is an exception of sorts as it does warn players on Windows 10 that they might have an advantage although it does not seem to impact how that mode works between platforms.
However, This is simply my take on the matter.
It's possible that other members on the staff team have different thoughts on this case.
Regardless, I hope I was able to clear some things up and that we could encourage ourselves to discuss more proactively on the topic at hand.