In the classic editor, paste the embed code into the visual Editor, it turns into a short code like this:

[[glowwakelet class="wakeletEmbed" width="100%" height="760px" src="https://embed.wakelet.com/wakes/9zrrft39tydSJRve_bnHb/grid?border=1&dark=1&hide-cover=1" style="border: none" allow="autoplay"]]

In the block editor, use the same process but paste it into a classic block.

This supports the different layouts and settings provided by waklet: