Which amp were you planning to bridge? Stereo tube amps aren’t usually bridged; their sides are run in parallel for mono. My VAC 200iQ tube amps are like this, and it results in a huge upgrade in performance (at the cost of 2 amps versus 1). I’ve tried bridging a SS amp I really love (Phison A2.120SE), and it honestly sounds better in stereo mode. Bridging is much more tricky, and more likely to degrade sonic performance for the extra power.
I tried bi-amping instead of bridging SS amps, and that was fun but nothing life changing. Tried both vertical and horizontal bi-amp. You need identical amps for vertical, and (at least) gain matching for horizontal. I simply still prefer to run that amp in stereo (single amp). Biggest difference I’ve heard so far was running the tube amps in mono/parallel mode (haven’t tried bi-amping them).