spectral arrow and custom shield isn't in the game

have things in java that don't have in bedrock, and bedrock have many bugs(mojang don't plays bedrock?)

things that don't have:

-custom shield 1.9 java

-spectral arrow 1.9 java

-repair iron golem with iron bars and damaged indicator texture of iron golem 1.15 java

-bossbar command 1.15 java

-left hand with any item 1.9 java

-choose hand left or right 1.8 java

-gamemode spectator 1.8 java

-hardcore difficulty 1.0.0 Beta 1.9 Prerelease 2 java

-combat(tool recoil time with indicator and sword area damage with particle animation) 1.9 java

-banner in map 1.14 java

-ilusioner 1.12 java

-achievements and new recipes guild when craft something in hud 1.12 java

-statistics 1.5 java

-when players go back they stay straight 1.12 java

-light correction in stairs slabs and some trapdors 1.14 java

-play bell in invasion add spectral effect in mobs 114 java

-when player crouch he can pass in smaller places 1.14 java

-tnt drops 100% of the blocks in explosion 1.14 java

-crouch config 1.15 java

-xp more transparent 1.15 java

-ejectors can place armor stands 1.15 java

 -gamemode selector bottom 1.16

bugs in bedrock:

-bow and trident in hand is in strang position and when try to hit with these itens they slow the moviment

-when you eat food while hunger bar is filling by complete the eat animation continue when is fineshed

-I don't know why but shaders textures don't work in xbox one and win10 version just in phone

-can't build above nether

I think that's all thanks if you guys read this beacouse I love so much this game and I need it better