I have no complaints about the sound quality when making calls, but I have never tested how good the speaker is for playing music.
The same applies to the volume. It is loud enough to make a phone call "at the ear" (between several milling machines it becomes too quiet, but we are talking about an environment in which hearing protection would actually be necessary).
My S62 is up to date and the thermal imaging camera works.
As far as the volume is concerned, I would actually like to see more, a smartphone designed for work should still be understood loud and clear when you are standing in the middle of the noise with hearing protection, CAT seems to be taking the view that you can't hear anything then anyway. However, the next challenge is to muffle the background noise so that the person you are talking to can hear you at all...

If you switch to loudspeaker, you can still listen to radio energy at 20kmh on the bike... Mobile phone fully up to date. The only problem is helsana coach... Helsana+ works perfectly, as does the super flir app and all the other 135 apps I have on it. Swisscom subscription. Would buy the phone again!

Sound quality and volume are ok. I did a software update when I received it and again today without any problems. FLIR works great.