When teleporting a Y-Level of 0.00001 below the top of a block (For most blocks, at the Y-Level of an Integer + 0.99999), the player is unable to move or look around. Attempting to sprint or fly does nothing, although sprinting will create footstep particles and play the walking sound.
To reproduce, use the command /tp @p ~ ~-0.00001 ~
At a Y-Level of 0.00002 or more below a block, the player will fall through the block (which I believe is the intended behavior.
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In 22w03a.

Can confirm in 22w12a

Can confirm in 1.19.4

Can confirm in 1.20.3 Release Candidate 1

This also affects X and Z axis.
When the player is clipped into a block 0.00001b on X or Z axis, this also happens.

Seems fixed in 1.21.2.

If it was fixed in 1.21.2, then it's been reverted in 24w44a. Not as extreme though, you can fly out of it and you can move very slightly.
can confirm 1.18.1 singleplayer