On most washing machines, non-fast colours, colours & whites covers all the bases & an extra spin if you want them to dry a bit quicker. You can make the mistake of trying woolens for a slow gentle wash once and when it still hasn't quite finished a week later you don't make that mistake again.
But I will defer to the pink job OOF expert TB where he knows better.
Unfortunately, I consider everything repairable apart from the program unit which is making funny extra clicking noises during the spin cycle, with no motor connection. It is not the brushes as the wash speed is fine. Having said that, years a go a friend ran a business fixing program units, so I used a cheap exchange one to fix my parents Hoover automatic. Took about 10 minutes to swap them over. But Indesit don't even list the part as a new or exchange unit, not that it would be a sensible economic route to go.
I agree on the lack of bearing replacement where modern drums are glued, rather than bolted, together, so you have to replace it as a £150-200 unit, which realistic probably makes it uneconomic, but there come a point when you have to replace an old machine.