FirewallHardening tool

I need to add multiple folders/subfolders of some programs containing exes to block, all at once. Could you add such a feature?

No.
FirewallHardening is a security layer intended to block mainly LOLBins. It is not a privacy tool.
If you want to block applications, you must block each EXE file separately.

I've got some questions:
1. I wonder why rules added from gpedit.msc say v2.30. Rules added by FirewallHardening tool shows v2.30.

I chose the method that works well on Windows 7, 8, 8.1, 10, and 11. There is no need to change it.

2. Also, I wonder why rules added by this tool doesn't appear listed in the group policy editor.

They are not added via GPO, which is absent on Windows Home.

3. Are these rules, created by your tool, overridden if I install a third-party security suite with its own firewall?

Yes, if this firewall disables Windows Firewall.
 
If you want to block applications, you must block each EXE file separately.
There are large, huge applications with several folders and subfolders with executables to block. Doing it separately is a pita. I don't know a privacy which can do that currently. There's Sordum's Firewall App Blocker but it creates rules in the WF only. Also, it has a feature which allows you to export WF rules to a policy (.wfw file) and then manually import it via gpedit.msc but again, only Pro and higher versions have this editor not Home editions.
 
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There's Sordum's Firewall App Blocker but it creates rules in the WF only. Also, it has a feature which allows you to export WF rules to a policy (.wfw file) and then manually import it via gpedit.msc
Windows firewall, with no need for 3rd pary program, can create rules, edit rules, export rules as wfw file, import rules back, and restore default rules.
 
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Windows firewall, with no need for 3rd pary program, can create rules, edit rules, export rules as wfw file, import rules back, and restore default rules.
Does it allow you to drag folders/subfolders with plenty of executables to create rules all at once, painlessly?
 
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