(Sorry if this again is another stupid Q from me but I'm really specific and can't make sense of these things sometimes) -
Does everything finance related fall into the remit of a 'finance lawyer' e.g. fintech, restructuring, etc.
Gemerally no, but there is some variety from firm to firm and some will have different ranges of activities within a finance group, which may or may not be further subdivided. Fintech will very rarely be the special purview of the finance dept., though they will naturally be involved in lots of those matters.
Common discrete areas or subdivisions are:
(Syndicated) loans
Debt capital markets (straight bonds)
High yield bonds (usually complementary to PE corporate)
Acquisition finance (ditto)
Restructuring (often distinct as it involves particular knowledge of insolvency regimes or has a mix of transactional and contentious)
Financial services advisory
Securitisation (may sit within DCM but is often highly specialised)
Real Estate finance
Project finance
Again, firm to firm will vary - Slaughters and SullCrom stand out as having very broad stroke finance depts where the same lawyers do a number of these things. Some firms have consolidated capital markets groups which will do both bonds and equity issuance. A decent number of American firms have discrete practices for restructuring and/or securitisation and/or project finance, I suspect because of historical contingency and profitability considerations. As noted PE-focused firms will tend to have one or more finance arms that operate in that space in particular.