Can Shelly's work with 2 way switches?

Hello - last year I installed some Shelly switches when renovating our house (and got some help here for my simple 1 way switches - which all work fine). However I have never got the 2 way switches to work correctly - and as my new year resolution I'm hoping to get them working properly

Intro into Shelly :: Sequr

Shelly 1 Switch Tricks - True 3-Way, Long Press Actions, 2 switches, Automations w/ Tasmota Firmware

Please tell me that a Shelly 1 can not be used here, so that my OCD monster leaves me alone. (I loves Hubitat!) - 💬 Lounge - Hubitat

Shelly dimmer two way switch wiring - Hardware - Home Assistant Community

Shelly 1PM UL Certified. Wi-Fi operated smart relay switch, 1 channel – Digital Bay Tech

Adding Shelly to HomeKit to make a dumb switch smart

Monitor 2 gangs at once with Shelly 2.5 - NotEnoughTech

Smart Control of a 1940's Three-Way Switch with Shelly 1L

Shelly Plus 1 Mini - SW not working as expected - Shelly 1 - Offizielles technisches Shelly Support Forum (DACH)