Hi Alexander,
I moved to new version 26.5 and here my results:
Please see:
Comparison(left-Csv, right-MapInfoTab)
image.png (117.2 KB)
Test data(input/output/QGIS)
5332-Csv-MapInfoTab.zip (44.4 KB)
Thanks,...Tab); // 3️⃣ Define CRS (replace EPSG:4326 with your source...