Ravel and Debussy especially tend to write with held notes like that...
Didn't know the tempo - I was thinking it was allegretto. TBH I think it would sound better a little faster than your recordings .. those are 16th notes, you're playing sounds more like Adagio or Largo. With your digital piano, you're not getting a lot of overtones, I was imaging how it would sound on my 7 foot grand, so where it should be pedaled, it should be changed frequently.
This just goes to show how the piano, the room, and the tempo are all contributing factors in deciding how to PEDAL ...