There’s a guy in Germany (I think) who sells a “GoodPlate” that’s borosilicate glass with a magnetic bed that sits on top of the current that fixes the problem. Search that long bed thread for ‘goodplate’ if you’re interested.
Another, cheap, solution is to go to Loews or Home Depot (US) and pick up a pack of Mirror Tiles. Under $20 for 6 or so! Mirrors inherently must be relatively flat. Must cut to size and add a magnetic sheet … Held by clips.
Personally, having used those on earlier machines, the tape is fairly easy and cheaper. Transfers heat perfectly too.
Well, I’d wait until you get more hours on it to see if it gets worse. Or you can do as I’ve suggested elsewhere and do a heat soak - run the bed to 110°C and leave it for 2 hours. Let it cool and repeat a couple more times. That will shake out any residual warping. 
It did on mine.
I’ve followed this problem for months. The new bed are just shipping, we don’t really know if any of the new batch have actually been received or if most current reports are still old batch trickling out … Wait a few weeks.
A known problem. Take PLA up a bit, on the Cool plate go for 45-50° on the Textured PEI (if you have it) got higher - 50-60°. PEI is an insulator and that plate is extra thick so …
Finally - go get yourself OrcaSlicer. It has great Calibration Tools Bambu Slicer doesn’t. Two click Temperature towers for example. I wrote a PSA (long, it’s my style, and yours too it appears LOL) post about the difference from Bambu Studio, go read it.
https://forum.bambulab.com/t/psa-up-your-game-studio-softfever-orcaslicer-arachne
It will help.
Cheers!