outlook sucks

Seirously,  i am not able to attach a file to my emial , no the problem of size the file is on my computer and i have tried many types of files , PDF, JEPG ............................. but it works on the web,  I am premium uses for microsfot 365 and i have seen many problems from microsft in recent years.  junk filter basically do not work at all i am going to swtich to apple compeltley. it sucks !!!