Lenovo laptops paste

Previously, Lenovo's non-THINK naming scheme (e.g. Legion Y530, Yoga C940) was:
[ misc prefix | position in product stack | generation | 0 ]
Recently, branding appears to have changed (e.g. Legion 5i, Yoga Slim 7) to
[ descriptor word | product stack position | -i suffix if intel]
However, the new names lack generational notation, and remain inconsistent between markets and even product lines.

Ideapad: Mainstream Consumer

Yoga: Premium Consumer
Poorer performance and cooling than Legions; poorer construction, warranties, and performance (to a lesser extent) than Thinkpads. One of the only premium line-ups to not focus on a metal shell, favouring soft-touch plastic instead.
Note that "Yoga" no longer denotes a 2-in-1; instead, a prefix is used (S = standard/slim, C = convertible) or dedicated sub-brands (Yoga 2-in-1, Ideapad Flex) exist.

Thinkpad: Business Productivity & Workstations (affectionately dubbed Thonkpads by many here).

Superior build, warranty, and often solid performance, although stock screens are often poor. Often pricier than consumer units, but not always, as outlet options and discount/student pricing (see !perks and !perks2 commands) is much more readily available than competing Latitudes or Elitebooks. See [!thinknames] for more info and naming scheme.

Thinkbook: "Prosumer"...?

In spite of the name, these are mostly just rebranded ideapads with a sleeker metal shell, made to provide a premium-consumer alternative to the plastic Yogas while capitalising on THINK-brand reputation. Arguably a soft-replacement for the entry level "Business-but-not-really" V-series.

Legion: Gaming

These are both midrange, mainstream gaming units, although the 5-series is aimed towards the lower end, while the 7-series targets the premium market. The Legion 5 is (as of Dec '20) currently favoured due to better price/performance options and design issues with the Legion 7.