My understanding --- this is from memory, so correct me if I'm wrong --- is that IARC published a report classifying glyphosate as a 2A carcinogen (joining a long list of common substances that occur in food both naturally and as a result of processing), but that the broader WHO did not back this assessment up. Reuters also ran a story based on an earlier draft of the IARC report showing that evidence against the carcinogenicity of glyphosate had been excised from the final report. Importantly, the IARC report was also a survey of previous studies of glyphosate, and the organizations that conducted those studies, like the Agricultural Health Study, disagreed with IARC.

My impression --- again, corrections welcome --- is that glyphosate has been intensively studied, both epidemiologically and in lab studies, and that none of those studies has conclusively linked glyphosate to cancer, even in rodent models, and even at unrealistically high doses.

To your original question: again, it's also important to remember that glyphosate-based pesticides aren't, like, pure aqueous solutions of glyphosate; there's lots of other stuff in there, as there are in all chemical herbicides, and if there's a lymphoma link to Roundup, who knows what the actual causative agent is? The evidence points away from glyphosate being it.