It is not recommended to install older version as newer version would be having fixes from communities.
Anyway if you want to install a specific version of package using yum that is very much possible.
Just provide the version number in yum install command for package.
# yum install <package>-<version>
For python3 3.7.9-1 the command will be
# yum install python3-3.7.9-1
You can also query what all versions of a packages are available
# yum --showduplicates list <package_name>
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SANKET RATHI
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