Presumably you're on a visa exempt for 45 days? In which case you can get one extension for 30 days.
After that you might be able to get an unable to travel due to covid extension but that will depend if they extend that or not, we won't know more on that for a month and a bit. If they extend it then that may take you through to Jan.
If they don't extend then it's going to come down to what exactly you're doing and what you plan on doing going forwards, as Stuart above says.
You can get one 30 day extension, yes. After that you're at the mercy of the unable to travel due to covid extension or finding another way to prolong your stay here if you choose to do so.