For me, on Windows, this is the opposite of what happened. For me, on 26.2, side scrolling to the right would move the selected slot to the left and it moves it correctly in 26.3.
Can confirm
Can confirm
Can confirm
It will reset to the default game mode as set by /defaultgamemode
Can Confirm. I have the same issue. However, the blurriness did go away when I set Anisotropic filtering to 8x.
this has been fixed in the latest snapshot
Can confirm
This also applies to the Resin Brick Stairs and Resin Brick Walls
Pigs converted into Zombified Piglin drop raw porkchop
Villagers converted into Witches drop nothing
Skeletons converted into Strays drop regular arrows instead of slowness arrows
Seems to be an issue that when a mob is converted into another mob, it keeps the same loot table as the first mob.
This appears to have been fixed in 1.21.11 Pre-Release 4.