Yes, the Tandy 1000, 2000 and their PC-compatible descendants were what Tandy ended up doing, but being PC-compatible they were more of a "surrender and join'em" strategy in the face of the PC juggernaut instead of "beat'em". When I was referring to Tandy I was thinking of their earlier unique non-PC computers like the Model I, II, III, IV (Z-80), Color Computer (6809) and 16 (68000 Unix-based OS), some of which were sold until 1991.

If you're interested, this retro site has several articles covering the Tandy PC clones, why they struggled at launch (weren't actually very compatible early on) and how they eventually failed (weren't differentiated or cheaper at the end). https://dfarq.homeip.net/tandy-1000-models/ But Tandy's PC-compatibles sold very well in-between the first and last couple years. More interesting from a retro perspective though, a lot of people don't realize just how dominant Tandy/Radio Shack's unique (non-PC) computers were between 1977 and 1985. They outsold even Apple, Atari and the C64 in many of those years.

The Color Computer was interesting. They kept the 8-bit fire burning a little longer than was truly reasonable, but I wouldn't fault them for it.