Can I implement firewall-like internet blocking from ADB on a per app basis on stock Android?

Instead of using 3rd party app freezers, I've been using "pm disable-user" / "pm uninstall" for years to disable/uninstall bloatware. However, some apps, if uninstalled (or even disabled sometimes), bootloop the device or just break basic functionality. So, I wish to block internet access to that bloatware which indirectly prevents me from removing it. Is there an adb command to implement internet blocking on a per app basis, like "pm uninstall" is for uninstalling? *(Yes, there are plenty firewall apps, but why rely on a 3rd-party app for something you can do yourself?)*