I think 90% chance of apple going for the EU-Specific model just like they did for Digital markets act, 10 chance of screws, 0% chance of actually popping the back cover off with bare hands.
For Samsung, 50% chance EU-Specific models 40% chance screws, 10% chance back cover tool-less removal. (Edit: typo)
As for other smaller manufacturers, probably just 50%/50% either screws or tool-less back cover removal.
Flashback to my Galaxy Ace circa 2012 with its cheap plastic back cover that literally snapped in half, leading to me being “that kid” in school with my phone held together with tape… 😐