Considering venvs as bloat is being a bit harsh on yourself. True that venvs don't try to share packages among themselves. But storage isn't costly enough to justify the effort in saving there.

There are plenty of development tools that take up more than 5GB of space for no reason. Even there, the bloat comes from the network bandwidth needed to update them and the fact that they make it easy to hide malware. Hardly anything free software can be considered bloated on that account.