This is not a fresh install, this Ubuntu 22.04 was upgraded from 21.10. Before upgrade, the Openshot run without error.

The terminal message at me:
$ openshot-qt
Loaded modules from installed directory: /usr/lib/python3/dist-packages/openshot_qt
         app:INFO ------------------------------------------------
         app:INFO             Thu May  5 10:06:08 2022            
         app:INFO               Starting new session              
         app:INFO ------------------------------------------------
         app:INFO             OpenShot (version 2.5.1)            
         app:INFO ------------------------------------------------
         app:INFO openshot-qt version: 2.5.1
         app:INFO libopenshot version: 0.2.5
         app:INFO platform: Linux-5.15.0-27-generic-x86_64-with-glibc2.35
         app:INFO processor: x86_64
         app:INFO machine: x86_64
         app:INFO python version: 3.10.4
         app:INFO qt5 version: 5.15.3
         app:INFO pyqt5 version: 5.15.6
     metrics:ERROR Error determining OS version in metrics.py
    language:INFO Qt Detected Languages: ['hu-HU']
    language:INFO LANG Environment Variable: hu_HU.UTF-8
    language:INFO LOCALE Environment Variable: 
    language:INFO OpenShot Preference Language: Default
project_data:INFO Setting default profile to HD 720p 30 fps
ZmqLogger::Connection - Error binding to tcp://*:5556. Switching to an available port.
ZmqLogger::Connection - Error binding to tcp://*:5556. Switching to an available port.
         app:INFO Setting font to Cantarell
logger_libopenshot:INFO Connecting to libopenshot with debug port: 5556
         app:INFO Setting custom dark theme
QMainWindow::addDockWidget: invalid 'area' argument
     metrics:INFO Track metric: [200] http://www.google-analytics.com/collect?cid=4596e90e-2b2c-41f6-b44b-e6a1cf43e1b4&v=1&tid=UA-4381101-5&an=OpenShot+Video+Editor&aip=1&aid=org.openshot.openshot-qt&av=2.5.1&ul=en-us&ua=Mozilla%2F5.0+%28X11%3B+Linux+x86_64%29+AppleWebKit%2F537.36+%28KHTML%2C+like+Gecko%29+Chrome%2F37.0.2062.120+Safari%2F537.36&cd1=0.2.5&cd2=3.10.4&cd3=5.15.3&cd4=5.15.6&cd5=None&t=screenview&sc=start&cd=launch-app | (35 bytes)
     ui_util:INFO Initializing UI for MainWindow
     metrics:INFO Track metric: [200] http://www.google-analytics.com/collect?cid=4596e90e-2b2c-41f6-b44b-e6a1cf43e1b4&v=1&tid=UA-4381101-5&an=OpenShot+Video+Editor&aip=1&aid=org.openshot.openshot-qt&av=2.5.1&ul=en-us&ua=Mozilla%2F5.0+%28X11%3B+Linux+x86_64%29+AppleWebKit%2F537.36+%28KHTML%2C+like+Gecko%29+Chrome%2F37.0.2062.120+Safari%2F537.36&cd1=0.2.5&cd2=3.10.4&cd3=5.15.3&cd4=5.15.6&cd5=None&t=screenview&sc=start&cd=launch-app | (35 bytes)
  exceptions:ERROR Unhandled Exception
Traceback (most recent call last):
  File "/usr/bin/openshot-qt", line 33, in <module>
    sys.exit(load_entry_point('openshot-qt==2.5.1', 'gui_scripts', 'openshot-qt')())
  File "/usr/lib/python3/dist-packages/openshot_qt/launch.py", line 97, in main
    app = OpenShotApp(argv)
  File "/usr/lib/python3/dist-packages/openshot_qt/classes/app.py", line 219, in __init__
    self.window = MainWindow(mode)
  File "/usr/lib/python3/dist-packages/openshot_qt/windows/main_window.py", line 2521, in __init__
    self.timeline = TimelineWebView(self)
  File "/usr/lib/python3/dist-packages/openshot_qt/windows/views/timeline_webview.py", line 3000, in __init__
    self.cache_renderer.setInterval(0.5 * 1000)
TypeError: setInterval(self, int): argument 1 has unexpected type 'float'
     metrics:INFO Track metric: [200] http://www.google-analytics.com/collect?cid=4596e90e-2b2c-41f6-b44b-e6a1cf43e1b4&v=1&tid=UA-4381101-5&an=OpenShot+Video+Editor&aip=1&aid=org.openshot.openshot-qt&av=2.5.1&ul=en-us&ua=Mozilla%2F5.0+%28X11%3B+Linux+x86_64%29+AppleWebKit%2F537.36+%28KHTML%2C+like+Gecko%29+Chrome%2F37.0.2062.120+Safari%2F537.36&cd1=0.2.5&cd2=3.10.4&cd3=5.15.3&cd4=5.15.6&cd5=None&t=screenview&cd=main-screen | (35 bytes)
     metrics:INFO Track metric: [200] http://www.google-analytics.com/collect?cid=4596e90e-2b2c-41f6-b44b-e6a1cf43e1b4&v=1&tid=UA-4381101-5&an=OpenShot+Video+Editor&aip=1&aid=org.openshot.openshot-qt&av=2.5.1&ul=en-us&ua=Mozilla%2F5.0+%28X11%3B+Linux+x86_64%29+AppleWebKit%2F537.36+%28KHTML%2C+like+Gecko%29+Chrome%2F37.0.2062.120+Safari%2F537.36&cd1=0.2.5&cd2=3.10.4&cd3=5.15.3&cd4=5.15.6&cd5=None&t=screenview&cd=main-screen | (35 bytes)
     metrics:INFO Track exception: [200] http://www.openshot.org/exception/json/ | *old-exception-ignored*
     version:INFO Found current version: {"error_rate_stable": 0.16, "openshot_version": "2.6.1", "error_rate_unstable": 0.05, "trans_rate_unstable": 0.001, "trans_rate_stable": 0.01}