traveling to Europe from US I'm going to be traveling to Germany, France, and Switzerland soon and I'm going to purchase a local SIM for data and use my TMobile sim for texts and any calls I might need to make.  My phone, a OnePlus 6, will allow 2 SIMS and I can designate one for data only and the other for calls and texts.

Since the European SIM will have a different phone number associated to it and I'll be using it as the data SIM, will signal messages/calls/video calls find me and work?  Wondering because Signal is linked to the US phone number.