The Bug:

Some strings that mention the names of items or blocks are improperly capitalized.

The release of 22w15a changed the majority of advancement strings to capitalize generic nouns within them (nouns that don't explicitly refer to the name of an item). Take the "advancements.adventure.sleep_in_bed.description" string for example. This string was previously "Sleep in a bed to change your respawn point" and was changed to "Sleep in a Bed to change your respawn point" in 22w15a. So why is this relevant? This change in capitalization suggests that all item names regardless of whether they've been explicitly mentioned, should be capitalized where appropriate throughout all strings in the game, therefore leading me to believe that this is a valid issue.

Affected Strings:

Before reading the table, please note the following:

• Words colored in GREEN are correct.
• Words colored in RED are incorrect.

Steps to Reproduce:

1. Display any of the affected strings as listed above by using the command provided below and replacing "XYZ" with the string's translation key. 

   /tellraw @s {"translate":"XYZ"}

2. Look closely at the affected words within the string.
3. Take note as to whether or not some strings that mention the names of items or blocks are improperly capitalized.

Observed Behavior:

Some strings that mention the names of items or blocks are improperly capitalized.

Expected Behavior:

All strings that mention the names of items or blocks would be properly capitalized.