Arteta has spent about 210m, Solksjaer has spent 410m. Until this summer Arteta had been working on a budget, now that he's had money to spend we're seeing the difference.
Don't call me a liar again, or I'll bring up your 150 posts in this thread that highlight your excellent footballing insight.
Ok here you go arsenal and United in last 3 transfer windows including this one:
19-20 United £195m Arsenal £135m (including Martinelli)
20-21 United £75m ( including Pellestri and Amad) Arsenal £72m
21-22 United £133m Arsenal £156m
United in last 3 seasons £408m
Arsenal in last 3 seasons £363m
Difference of £45m which also includes £25m United spent on Amad and Pellestri.
Now if you want to just include last 2 seasons as Arteta's first full window was 20-21
Arsenal in last 2 seasons £228m, United in last 2 seasons £208m. So yes your original statement that Arteta has spent little in comparison to Ole was incorrect. Unless you want to count 3 season for one guy and only transfer from 2 for another. Please note this doesn't include loan fees or wages.
So next time check your facts before posting something. And hey feel free to post my 150 posts that you mentioned because I am sure you are incorrect on that as well.