JSON-Text formatting in CustomNames of container blocks does not work

I don't know if that may be intended due to technical limitations, but the json format tags do not appear to do anything when used in CustomNames of container blocks.

These commands do not give the desired format:

setblock ~ ~ ~ minecraft:chest{CustomName:"{\"text\":\"Hellou\",\"strikethrough\":true}"}

setblock ~ ~ ~ minecraft:chest{CustomName:"{\"text\":\"Hellou\",\"color\":\"red\"}"}

While these do:

summon minecraft:creeper ~ ~ ~ {CustomName:"{\"text\":\"Hellou\",\"strikethrough\":true}"}

summon minecraft:creeper ~ ~ ~ {CustomName:"{\"text\":\"Hellou\",\"color\":\"red\"}"}

give @p minecraft:stone{display:{Name:"{\"text\":\"Hellou\",\"strikethrough\":true}"}}

give @p minecraft:stone{display:{Name:"{\"text\":\"Hellou\",\"color\":\"red\"}"}}

Note that the legacy § formatting displays as expected