Yes. It is possible to find out the list of hotfixes installed on TDV server by looking at the contents of "[TDV Server installation dir]\install" folder.  The folder stores rollback scripts whose names contain the hotfix numbers, as in the example below.

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Directory of C:\Program Files\TIBCO\TDV Server 7.0\install       ..
09/07/2018  12:15 PM   cis_version.txt
10/18/2018  12:35 AM   rollback_TDV_server_7.0.8_HF-001_all.bat
10/18/2018  12:35 AM   rollback_TDV_server_7.0.8_HF-001_all.sh
01/22/2019  08:19 PM   rollback_TDV_server_7.0.8_HF-002_all.bat
01/22/2019  08:19 PM   rollback_TDV_server_7.0.8_HF-002_all.sh
10/18/2018  12:35 AM   TDV_server_7.0.8_HF-001_all.txt
01/22/2019  08:19 PM   TDV_server_7.0.8_HF-002_all.txt
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This example listing shows that that two hotfixes have been installed, which are 7.0.8_HF-001 and 7.0.8_HF-002.