You might find that ridiculous, but if you read this, you might change your mind.
I have been doing what is known as “greasing the groove” while working at home during the pandemic. I have noticed getting stronger. As well, I stretch at least once a day, and I have found I have become more flexible too.
You will not get in the same shape as someone who works out 30-60 minutes every day. Get yourself some weights or even some heavy objects. Or go over to a site like darebee and get a 1 minute workout. After doing it for a few weeks, you will achieve more than you imagined.
Give it a shot.