I did exactly what you asked - downloaded and tried to install it locally with rpm. What any further steps can be here? Same issue, means same issue. Same error.
viktor-pc:~ # rpm -Uvh wireshark-4.0.0-394.1.x86_64.rpm
Verifying... ################################# [100%]
Preparing... ################################# [100%]
Updating / installing...
1:wireshark-4.0.0-394.1 ################################# [100%]
error: unpacking of archive failed on file /usr/bin/dumpcap;63431a3a: cpio: cap_set_file failed - Operation not permitted
error: wireshark-4.0.0-394.1.x86_64: install failed
viktor-pc:~ #
I hope no one need wget command output here?