[mainstreemm]

I had a bad time with this a little over a year ago and stopped using Signal over it.

If my phone was off and I used Signal Desktop in the meantime, when I turned my phone back on the sync would often take as long as half an hour, with my phone buzzing for each message received during the duration in which I was online.

I contacted support and, well, it's a free product, what do you expect?

I stopped using it after I received a text message from my then-fiance about a medical diagnosis and couldn't call her back until Signal stopped overloading my phone. Awful. Purged from my device and I never recommend them anymore.