We chose not to add an image for quote posts because you cannot create and post them in Mastodon yet, and the number of other Fediverse servers that implement the relevant FEP is limited, so it would be over promising what you’ll see in 4.4 - the full feature is set for 4.5.
For the sake of refreshing outdated information here, Mastodon 4.4 does now show remote favourite and boost counts where available (see https://blog.joinmastodon.org/2025/07/mastodon-4-4-for-devs/) and also has an experimental feature to pull in remote replies. Obviously it will take some time for servers to update to the newer release, but we’re moving forward to improvements here!