one alternative would be to use the QuWireless 4x4 MIMO antenna - it works across LTE and NR:
QuPanel 5G/LTE directional MIMO 4x4 high gain antenna is predicted for 5G and 4G LTE. It’s compatible with Teltonika and other MIMO 4x4 5G / LTE / 3G / 2G modems and routers.
quwireless.com
I tried one a while back and the signal gain was pretty good - even with 10m of coax cable. It was on a par with a Huawei 5G antenna (using 5m coax) and much better than the XPOL-0002-V2. One word of caution though - the unit is big and heavy so needs decent pole to mount it on. I used a 1.5" diameter pole from Toolstation:
• Straight pole. Suitable for standard Aerial and Satellite Dish installs.• Aluminium alloy seam welded for added strength and corrosion resistance.• The extra height is ideal for areas where there may not be a clear line of sight.
www.toolstation.com