On Java, you can make custom player heads, more build hacks and more skills than in Bedrock/Pocket edition. Saying about custom heads, sadly in Bedrock/Pocket edition you can have olny Steve head (And mob heads)

None of these seem actually wrong, but there are instances where the statements might be expanded upon….

Examples:
Java can be played straight vanilla [​and there are many who do so] which eleiminates the increased c resource demands of mods, however BR has some limits
(e.g. "In Bedrock Edition, the build limit in the Nether is 128 blocks" differet mob caps etc) that tend to make it less resource intense.
Java also has a number of performance enhancing mods [​the most well known probably being OptiFine] thatat least partially offset any disadvantage in this catagory.

Java has been adapted to more platforms than listed — although some (like the Rasberry Pi version) are more technical demonstrations than proper ports.

Cross play is at least possible (BR players into MC worlds at least , not seen the reverse) via mods — although these do not appear to be a perfect solution.

Java can use a variety of other interfaces through mods although many/most seem to be aimed more at handicapped accessibility rather than allowing game controller use. [​Not an area I've much explored, so YMMV]

The ability to avoid censorship on java (aka "parental controls and safety features") is [​at leats for adult players] a feature.

Much of technical play (which is generally understood to include RS) is better supported in java. [​This can be attributed (at least in part) to a 'founder effect' where early technical/RS-heavy players were effectively restricted to MC (even after the various console BR precursors were launched) making this the preferred platform for such players.]