Good to hear that these sensors are working for you now with your RTL433 and SDR stick setup.
I know that both the TFA-303221 and LaCrosse-TX work nicely for me with OpenMQTTGateway and a CC1101, as the first are my fridge/freezer thermometers and the latter is my neighbour’s outdoor weather station sensor, which I also pick up, but don’t process in my home setup.
So if you ever decide to switch to OMG with CC1101, you can feel confident, that all your sensors will be recognised
rtl_433_ESP - TFA-303221
rtl_433_ESP - LaCrosse-TX141THBv2
The above linked included device decoders are from the OpenMQTTGateway included rtl_433_ESP. They do differ slightly from the rtl_433 decoders, especially in the LaCrosse one it says
Also TFA 30.3221.02 (a TX141TH-Bv2),
also TFA 30.3222.02 (a LaCrosse-TX141W).
and in the tfa_30_3221
This is the same as LaCrosse-TX141THBv2 and should be merged.
That’s probably why you are seeing these occasional different recognitions, and might also be a reason for your initial problems with the Brifit recognitions. Since this doesn’t seem to affect the rtl_433_ESP decoders from my experience it might be better addressed in the rtl_433 github issues section - which it might already have been done with the above comments in the decoder files