Yes, this still happens. I don't notice any improvement with Fabulous! graphics on pre8.
Yes this is still an issue in 20w22a - tested against blocks of water, stained glass, slime, and chests, and against a dropped slimeball entity.
I was however unable to reproduce the issue against horses as pictured, or slime entities, so it seems there's been some improvement.
I'm using https://www.minecraftforum.net/news.rss