Update for anyone following along:

After securing my BTC, tried the following:

BCH
This was the easiest to manage, seems like there's an ecosystem that is alive at least. Electron Cash app seemed to work fine, forked coins were there and I was able to send to exchange and swap for BTC. Works as advertised.

Result = Claimed!

BSV
Looks like a dead ecosystem. The main website looks like bizarre propaganda for CSW, with little to no information about the technology. There is an electron fork that doesn't look maintained. Only have binaries available for Windows and Mac. No AppImage or deb file for Linux, have to build from source. Tried to build from source but it only supports up to Python 3.9.X. Tried to build with 3.10 but lots of errors. Doesn't look widely supported on exchanges and for the pittance I would be collecting here, my time is worth more than this.

Result = Abandoned.

eCash
No idea what this network is meant to be. They did a share split 1:1000000 so now everyone looks wealthy. There is an Electron ABC for Linux which appears well supported and I was able to claim my coins. Appears Binance supports this asset so I sign a transaction to deposit to my personal Binance. No block has been mined for over 40 minutes. Transaction is still unconfirmed. Feels dead.

Result = Pending, but likely abandoned.

Nothing else worth doing, already wasted too much time on these. Thanks everyone for all your comments, Merry Christmas!