At the half:
I tuned in about 10 minutes through the half once I grabbed some lunch. I have been watching France play through this tournament and they haven't seemed like they particularly found their groove yet. At least, they seem a pale imitation of the French team that showed up in the World Cup. I had thought it was maybe due to Mbappe being sidelined so far. However, with him on the pitch this game, they have largely struggled to break through the Polish defense (until the last ~5 minutes or so).
There just hasn't been too much movement off the ball for France, creating space for their play makers to work through the Polish defense. France has looked better on the fast break than when they try to build it up because they have struggled to get through the back line of Poland after they get their lines set up. There were a couple minutes there at the end of the half where France started playing some quick give and go's and were able to spring some players behind the back line to make the Polish goalkeeper come up with some good reflex saves.
As for Poland, I think they should be fairly happy with their performance so far. They have mostly managed to contain some of the French play makers while having a couple good looks at goal on the break. Something to watch out for, and they almost got caught out, is that they don't over commit forward and have things turn into a footrace toward their own goal after a turnover.
The French team of the last five minutes of the half looked way better than the rest of what I watched, so I think they should look to emulate those quick passes and through balls to try to break through Poland as their big, lofted crosses haven't had shown too much promise yet.