If so, they should be merged.

Evidence:

1. From New version: TeraTermProject.teraterm5 version 5.5.2 #336311:

Possible duplicate package entry.
Similar installer SHA256 hash found in manifest:

• InstallerSha256: 8e6b373520199496268e968ef5cc4a9e18d1245c5d924ee3b8210b27d062a907
  • manifests/t/TeraTermProject/teraterm/5.5.2

2. winget search output:

PS C:\ManVal> winget search TeraTermProject.teraterm
Name        Id                        Version Source
-----------------------------------------------------
Tera Term   TeraTermProject.teraterm  5.5.2   winget
Tera Term 5 TeraTermProject.teraterm5 5.5.1   winget