I use a Verizon JetPack mobile WiFi hotspot. Not the cheapest but I'd venture the most reliable. Been using it for almost 6 years now and am on my 3rd JetPack.
If I have a WiFi signal* it has not ever dropped it with or without the weboost.
*my data plan is unlimited and the first 15 GB of data I use is fast. After that the speed drops to 500/600 kbps, that's the unlimited part. Very slow, throttled, up and down speeds.
I've never dropped a Zoom call or been unable to text or talk. It's uploading/downloading large files that makes things stop or slow down. There have been many areas where I travel that are very good, and some areas I avoid if I need fast wifi, especially the areas with a lot of people. All you have to do is look at the signal strength on your Hotspot or phone. If it's 3 bars the Hotspot should be 3 bars, etc.
Mobile WiFi is secure as you have your own user ID and unique password for your Hotspot.
just my ol 2¢