Ledger to Trezor Safe 3 - Should I combine all my wallets into one new address?

Sorry if wrong sub. I'm getting ready to set up my Trezor Safe 3 and was debating making entirely new seed vs. importing seed from Ledger.

I have about 15 different wallet addresses on my Ledger mostly starting with 3 and a couple starting with bc1q. If I decide to set up Trezor as new device, how should I handle all the wallets? Is there any advantage or disadvantage to combining them all into one? Or is it better to just keep them separate as they are now?

Things I've pondered....

- If I combine them all, what kind of new address will I get? Or which to choose if I have a choice? (3Hyf..,bc1q.., etc.)

- Similar to above, If I keep them as individual addresses should I update the format type? Sorry if my grammar is incorrect but I mean should I transfer old 3Hyf.. address type to newer bc1.. type address if this is even an option?

- Will any of these moves (consolidation or not) cause confusion with my Koinly software or with Coinbase?

Aside from this any other helpful hints or glaring oversights that I've missed would be appreciated.