I just started working with GIS very recently.

I'm trying to create a buffer of 200m around the points of the layer "vlaamse venen naamloze laag". But in the distance box, the program will only allow me to create a buffer in degrees? I checked the project properties, but they are in meters.

screenshot of the creation of the buffer

I tried using this question, (gis.stackexchange.com/questions/97225/create-buffer-in-metres) but I can't figure it out. Changing the CRS of the layers makes that the distance is put in meters but then i have a different problem. If I change them (e.g. to Lambert 72 or Lambert 2008), my layers dont overlap anymore, which they should.

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    Buffers are based on the layers CRS, which is 4326, which is based on degree. Save your data in a different, meter-based CRS (don't just set it to one), then buffer. – Erik Nov 4 '19 at 14:10
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    Also, on the question which CRS to use, please refer to epsg.io – Erik Nov 4 '19 at 14:21
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    The emphasis on Erik's comment should be on the word "layer." The buffer algorithm uses the CRS of the layer, not the CRS of the project. Reproject your layer into a CRS that uses meters. – csk Nov 4 '19 at 16:10
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    Don’t change the projection, reproject rather the layer as @Erik suggested – Taras Nov 5 '19 at 10:50