How to reproduce

1. Create always active repeat command block, and write this command to it:

   execute as @e[type=minecraft:bogged] run attribute @s minecraft:generic.gravity base set 0
   

2. Summon bogged one block directly above soul flame or glow lichen sticking to the floor and make it immobile in some way.
3. Smash attack hits the summoned bogged.

Observed result

When the soul flame is 1 block below, fragments of the soul flame will scatter, and when the glow lichen is 1 block below, fragments of the glow lichen will scatter.

Expected result

No explosive particles when there is no block or non-solid block on which the entity stands.