I tried SimpleX but the VPN kill switch on my phone prevents syncing with my computer.
I use telegram primarily as a note taking app with sync features.
Occasionally I send files to friends, so having easy set up for tech illiterate would be great.
Signal is not available for Android tablets, which was a deal breaker when I tried to move my family off Telegram.
“Don’t you guys have phones?”
Also, I htought 99% of tablets connect to the mobile network using a SIMcard, but even if you rely only on wifi, see my previous quote.